Identify the lateral area and surface area of a regular triangular pyramid with base edge length 10 ft and slant
height 14 ft

Answers

Answer 1

Answer:

L = 315 cm2 ; S = 399.9 cm2

Step-by-step explanation:

Lateral area;

3 × (½)(14)(15)

315 cm²

Surface area:

315 + (½)(14)(14)sin(60)

399.8704896 cm²

Answer 2

    Lateral surface area of the regula triangular pyramid is 210 ft²

    Surface area of the regular triangular pyramid is 253.30 ft²

Lateral area and Surface area of a triangular pyramid:  Expression for the lateral area of a regular triangular pyramid is given by,

          Lateral surface area = 3(Area of one lateral triangular side)

  Expression for the total surface area is given by,

          Surface area = Area of the triangular base + Lateral surface area

Given in the question,

 Base with the edge length = 10 feet  Slant height = 14 ft

Lateral surface area = [tex]3(\frac{1}{2})(\text{Base})(\text{Slant height})[/tex]

                                  = [tex]\frac{3}{2}(10)(14)[/tex]

                                  = 210 ft²

Area of the regular triangular base = [tex]\frac{\sqrt{3} }{4}(a)^2[/tex]

                                                          = [tex]\frac{\sqrt{3} }{4}(10)^2[/tex]

                                                          = 25√3 ft²

                                                          = 43.30 ft²

Therefore, total surface area = 210 + 43.30

                                                 = 253.30 ft²

     Hence, lateral surface area of the regula triangular pyramid is 210 ft²

                   Surface area of the regular triangular pyramid is 253.30 ft²

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Identify The Lateral Area And Surface Area Of A Regular Triangular Pyramid With Base Edge Length 10 Ft

Related Questions

PLSSS HELPPP
aMath
What helps find the volume of the figure?
6 X 6 X 7
8 x 6 x 6
6 X 7 X 8
6 X 6 X 7 X 8
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Answers

Volume of rectangular prism
= W * L * H
W = 7, L = 6, H = 6
Multiply them together

Solution: 6 * 6 * 7

The volume of the rectangular prism can be found using the 6x6x7 option (A) 6x6x7 is correct.

What is a rectangular prism?

It is defined as the six-faced shape, a type of hexahedron in geometry.

It is a three-dimensional shape. It is also called a cuboid.

It is given that:

A rectangular prism is given in the picture with dimensions:

As we know, volume can be defined as a three-dimensional space enclosed by an object or thing.

The volume of the rectangular prism is given by:

V = L×W×H

Here, V is the volume of the rectangular prism

L is the length of the rectangular prism

W is the width of the rectangular prism

H is the height of the rectangular prism

From the figure:

L = 6 cm

W = 7 cm

H = 6 cm

V = 6x7x6

or

V = 6x6x7

Thus, the volume of the rectangular prism can be found using the 6x6x7 option (A) 6x6x7 is correct.

Learn more about the rectangular prism here:

brainly.com/question/21308574

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Complete the recursive formula of the geometric sequence 27,−9,3,−1,

Answers

Step-by-step explanation:

a1 = 27

r = -9/27 = -⅓

the formula :

an = a1. r^(n-1)

= 27. (-⅓)^(n-1)

= 3³(-3`¹)^(n-1)

= 3³(-3)^(1-n)

ILL GIVE BRAILY!!!
If ABCD is dilated by a factor of 1/2 the
coordinate of A would be:
A = ([?],[ ]

Answers

Answer:

Step-by-step explanation:

here A(-3,-2)

-3 is x and -2 is y

so use this formula to find A'

p(x,y)=p'kx,ky)

here k is a scale factor which is 1/2

A(-3,-2)=A'(1/2*-3.1/2*-2)

A'(-3/2,-1)

not a question,but can u check if i did this correctly

Answers

Yes, it looks like everything is plugged in right

On the other hand, you have very neat handwriting.

Julio bought 7 science fiction novels (s) and 7 comic books c) from the bookstore. His purchases can be represented by the expression 7(s + c). Part B: The cost of a science fiction novel is $5.99 and the cost of a comic book is $6.49. Sales tax is 6%. What is the total amount that Julio spent at the bookstore? Round your answer to the nearest cent. Show your work? ​

Answers

Answer:

$92.60

Step-by-step explanation:

7($5.99) + 7($6.49)=$41.93

$41.93 + $45.43  = $87.36

$87.36 + ($87.36 × 6%=0.06)

$87.36 + (0.06 × $87.36=5.24)

$87.36 + $5.24= $92.60

The lengths of four different snakes in the reptile exhibit at the zoo are 2 feet, 3.6 feet, 2 feet, and 3.625 feet. Order the lengths from least to greatest.

Answers

Answer:

2feet, 2feet, 3.6 feet, 3.625 feet

Step-by-step explanation:

Given data

The given lenght area

2 feet, 3.6 feet, 2 feet, and 3.625 feet

Rearrange in increasing order we have

2feet, 2feet, 3.6 feet, 3.625 feet

f(x)=3x2-15x-42 f(x)=5x2+50x+125
needs to be answered like this
f(x)=3(???)(???)
algebra

Answers

Answer:

3(−7)(+2)

5(+5)²

Step-by-step explanation:

f() = 3² - 15 - 42 = 3(−7)(+2)

f() = 5² + 50 + 125 =  5(+5)²

That is how you factor them. Hope this helps :)

Which of the following equations describes the line shown below? Check all
that apply. (-3,-6)(9,3)

Answers

Answer:

C and D

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 3, - 6) and (x₂, y₂ ) = (9, 3) ← 2 points on the line

m = [tex]\frac{3+6}{9+3}[/tex] = [tex]\frac{9}{12}[/tex] = [tex]\frac{3}{4}[/tex]

Using (a, b ) = (9, 3 ) , then

y - 3 = [tex]\frac{3}{4}[/tex] (x - 9) → C

Using (a, b ) = (- 3, - 6 ), then

y - (- 6) = [tex]\frac{3}{4}[/tex] (x - (- 3) ) , that is

y + 6 = [tex]\frac{3}{4}[/tex] (x + 3) → D

hi i need help with this photo file related to ratios, if you could help me with this that would mean alot, thankyou

Answers

Answer

4.5 : 0.24 = 1.5 :0.08    [dividing by 3]

Find the area of the figure.


Answers

Answer:

132

Step-by-step explanation:

4*7  +  (7+19)/2  * 8  = 28 + 104 = 132

P(G) *
F
S
5
8
10
7
2.
24
14
G
15
H
Your answer

Answers

Answer:

the answer is no tawag utro the gathered up and I will send you the details in each of the three I don't think so but not in the office today but will be in touch soon to be at work tomorrow at the y I love the

Plz help solve this please and thx u

Answers

2 (an - 1) = 40
2an - 2 =40
2an = 40 - 2
2an = 38
2an/2 = 38/2
an = 19

HELP PLEASE I NEED TO TURN THIS IN BEFORE WEDNESDAY

Answers

Answer:

451

Step-by-step explanation:

solve by substitution y=-2x y=8x-10

Answers

Point Form:
(1,-2)
Equation Form:
x=1,y=-2
(correct me if wrong)

Help !!!!!pla for 20 point s

Answers

Answer:

look at the picture i have sent

Answer:

Hey mate......

Step-by-step explanation:

This is ur answer.....

Solution :-

= x + 40 + 67 = 180

= x + 107 = 180

= x = 180 - 107

= x = 73

40 + 67 + 73 = 180

Hope it helps!

Brainliest pls!

Follow me! :)

What is the equation in vertex form of the quadratic function with a vertex at (-1,-4) that goes through (1,8)?​

Answers

Answer:

G

Step-by-step explanation:

vertex formula = a(x-h)^2 + k

vertex is (h, k) so (-1, -4) means

y = a(x+1)^2-4

passes through (1, 8) so when x = 1 and y = 8

8 = a(1+1)^2-4 = 4a - 4

4a = 4

a = 1

If a car drove 180 miles in 3 hours and a truck drove 150 miles in 2 hours, what is the speed (in miles per hour) of the faster vehicle?

Answers

Step-by-step explanation:

Divide 180 by 3 = 60

Divide 150 by 2 = 75

The faster vehicle is truck and its speed is 75 mph


Help me pleaseeeee

Answers

Step-by-step explanation:

1. m∠ WYC = 90° - 63°

= 27°

2. 9x + 63° = 90°

9x = 90° - 63°

9x = 27°

x = 27/9

x = 3°

#CMIIW

Find the lateral and total for the cone below. leave the answer in terms of pie.

Answers

Answer:

35×24 = 840in²

Step-by-step explanation:

height=35 in.base = 24in.

then multiply

Find the value of x, rounded to the nearest tenth.
a) 2.7
b) 4
c) 3.8
d) 2.9​

Answers

Answer:

b) 4

Step-by-step explanation:

A =?

B =?

A+B = 6

C=5

D = 3

C+D = 8

(A+B) xB = (C+D)xD

6 X= 8x3

6X = 24

X = 4

What is the value of the y-coordinate of point A?

Answers

Answer:

-1/2

Step-by-step explanation:

-1/2

A poll of 250 students found they studied an average of 48 minutes each evening with a standard deviation of 8.4 minutes. Using a 90% confidence interval, what is the maximum error of estimate for the time spent studying?

Answers

Answer:

hope this helps

Step-by-step explanation:

Mindy has $10.75 to buy school supplies. She spends $3.96 at one store for a package of glue sticks, but she still needs to buy 3 pens and a
notebook. At the next store, she finds pens for $1.39 each. What is the most she can spend on a notebook if she buys the 3 pens?
o
$2.62
$4.17
$5.40
$6.79
Part B
Make a selection from each drop-down menu to create a true sentence.
On a number line, the solution to Part A would have a circle at
Choose
that is
Choose
and the number line
would be shaded Choose...

Answers

Answer:

FOR ANYONE THAT WANTS TO STUDY SCREENSHOT BEFORE KATLE DELEATES THIS

meeting id:  932-8097-2909

password:  z99LtX

#REBELAGANISTKATLE

Step-by-step explanation:

She can spend $2.62
:)

what are 2 reasons why people should wear masks for school report.

Answers

Answer:

-decreases the chance of contracting any type of virus  

-decreases the chance of other people contracting the virus

Step-by-step explanation:

Answer: It keeps people safe, and it keeps you safe as well.

Step-by-step explanation: You're keeping other people safe by wearing a mask,since youre limiting or even entirely preventing particles and germs from reaching other people,and protecting yourself because a mask prevents germs entering your nose and mouth.

The test scores of five students for the first two test of the semester are shown in the table below.

Answers

Answer:

A

Step-by-step explanation:

Take test score from Test 1 and add them all together and divide by the number of test

ex) 77+82+69+85+93=406

    406/5= 81.2

Then repeat with Test 2

ex) 75+76+71+68+72=362

    362/5= 72.4

Therefore the MAD of Test 1 > MAD of Test 2

the answer is A.

Step-by-step explanation:

Add the test scores of the first test together then add the test scores of the second test together then compare and contrast.

Find the​ x-intercept and the​ y-intercept of the graph of the equation. 2x + 3y = 18

Answers

Answer:

x-intercept is at (9, 0)

y-intercept is at  (0, 6).

Step-by-step explanation:

The x intercept occurs when y = 0:

2x + 3*0 = 18

2x = 18

x = 9,

y-intercept, when x = 0:

2(0) + 3y = 18

y = 6.

[tex]_____________________________________[/tex]

ANSWER:x - intercept:[tex]\tt{(9,0)}[/tex]y - intercept:[tex]\tt{(0,6)}[/tex]

[tex]_____________________________________[/tex]

꧁____YunaKoharuChan____꧂

Find the value of x. Write your answer in simplest form.
Х
7
X =

Answers

[tex]\large\mathfrak{{\pmb{\underline{To~find}}:}}[/tex]The value of x

[tex]\large\mathfrak{{\pmb{\underline{Solution}}:}}[/tex]The given triangle is a right angle triangle

[tex]\sf\implies{x^{2}=7^{2}+7^{2}~~~~~~~~(Pythagoras~theorem)}[/tex]

[tex]\sf\implies{x^{2}=49+49}[/tex]

[tex]\sf\implies{x^{2}=98}[/tex]

[tex]\sf\implies{x={\sqrt{98}}}[/tex]

[tex]\sf\implies{x={\sqrt{49×2}}}[/tex]

[tex]\sf\implies{x={\underline{\boxed{\sf{\pmb{7{\sqrt{2}}}}}}}}[/tex]

[tex]\large\therefore\mathfrak{{\pmb{\underline{Solution}}:}}[/tex][tex]\sf{x={\underline{\underline{\sf{\pmb{7{\sqrt{2}}}}}}}}[/tex]

using Pythagorean theorem

a²+b²=c² where 'a'&'b' are legs of the right angle triangle and 'c' is the hypotenuse of the right angle triangle

here two legs are given (7,7) and x is the hypotenuse

=>a²+b²=c²

=>7²+7²=x²

=>x²=49+49

=>x²=98

=>√x²=√98

=>x=7√2

I hope it helps have a great day

Please help me
I will give brainlist please explain

Answers

so you have to graph that on to the chart i think

In the diagram below, tan0= V3. What is the value of m?

Answers

Answer:

[tex] \sqrt{3} \div 2[/tex]

Step-by-step explanation:

there are multiple ways to get to the result. and it took me a little while to figure out your symbolic. I am not sure about the context of your problem, so I try to give you 2 ways.

1. similar triangles.

they have the same angles, and therefore the change factor for their side lengths (to change from one similar triangle to the other) must be the same for all sides.

tan of an angle is the length of the outside tangent touching the circle starting at x=1,y=0 and going up perpendicular all the way until it crosses the line from the center of the circle enclosing the angle.

so, we have one triangle of the corners ABC, where A=(0,0), B=(1,0), C=(1,tan of the angle = sqrt(3)).

and we have a similar triangle ADE, where A=(0,0), D=(cos of the angle=1/2,0), E=(1/2,m).

we know because of the described similarity that the sides BC and DE must have the same ratio as e.g. AB and AD.

AB=1, AD=1/2, so the ratio AD/AB = 1/2.

now, BC=sqrt(3). DE=m and must follow the same ratio as AD/AB. DE/BC=1/2.

=> m/sqrt(3)=1/2 => m=sqrt(3)/2

2. circle equation : x^2 + y^2=r^2

x=1/2, y=m, r=1

(1/2)^2 + m^2 = 1^2 (= 1)

1/4 + m^2 = 1

m^2 = 3/4

m = sqrt(3)/sqrt(4) = sqrt(3)/2

What does the P equal in P-17=33

Answers

Answer:

Hello! answer: 50

Step-by-step explanation:

33 + 17 = 50 50 - 17 = 33 Hope that helps!

Answer:

P equals 50

Step-by-step explanation:

33 plus 17 equals 50

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