Mathematics College

Show that the point (å,ä ) is on the perpendicular bisector of the line segment with end points
(Ů,ü ) and (ĝ,ġ )

Answers

Answer 1

To show that the point (å, ä) is on the perpendicular bisector of the line segment with endpoints (Ů, ü) and (ĝ, ġ), we need to demonstrate two things: that the point lies on the line segment, and that it is equidistant from the endpoints.

1. Determine the midpoint of the line segment:

  - The midpoint coordinates ([tex]x_{mid, y_{mid[/tex]) can be found using the midpoint formula:

    [tex]x_{mid[/tex] = (x1 + x2) / 2 and [tex]y_mid[/tex] = (y1 + y2) / 2, where (x1, y1) and (x2, y2) are the coordinates of the endpoints.

    In this case, we have (x1, y1) = (Ů, ü) and (x2, y2) = (ĝ, ġ).

2. Calculate the midpoint coordinates:

  - Substitute the values into the midpoint formula to find (x_mid, y_mid).

3. Find the slope of the line segment:

  - Use the slope formula: slope = (y2 - y1) / (x2 - x1).

    Apply the formula to the endpoints (Ů, ü) and (ĝ, ġ) to determine the slope of the line segment.

4. Determine the negative reciprocal of the line segment's slope:

  - Take the negative reciprocal of the slope calculated in the previous step. The negative reciprocal of a slope m is -1/m.

5. Write the equation of the perpendicular bisector:

  - Using the negative reciprocal slope and the midpoint coordinates ([tex]x_{mid[/tex], [tex]y_{mid[/tex]), write the equation of the perpendicular bisector in point-slope form: y - [tex]y_{mid[/tex] = [tex]m_{perp[/tex] * (x - [tex]x_{mid[/tex]), where [tex]m_{perp[/tex] is the negative reciprocal slope.

6. Substitute the point (å, ä) into the equation:

  - Replace x and y in the equation of the perpendicular bisector with the coordinates of the point (å, ä). Simplify the equation.

7. Verify that the equation holds true:

  - If the equation is satisfied when substituting (å, ä), then the point lies on the perpendicular bisector.

By following these steps, you can demonstrate that the point (å, ä) lies on the perpendicular bisector of the line segment with endpoints (Ů, ü) and (ĝ, ġ).

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Related Questions

The figure below shows a triangular piece of cloth:
7 in.
What is the length of the portion BC of the cloth?
07 cos 33°
sin 33
07 sin 33°
B
O cos 33

Answers

The length of portion BC of the cloth is approximately 5.8709 inches.

To find the length of portion BC of the cloth, we need to use trigonometric functions.

In this case, we can use the cosine function.

Given that the adjacent side to angle B is labeled BC and the hypotenuse is labeled 7 in, we can apply the cosine function, which is defined as the adjacent side divided by the hypotenuse:

cos(angle) = adjacent / hypotenuse

In this scenario, the angle we are considering is 33 degrees.

Therefore, we have:

cos(33°) = BC / 7 in

To isolate BC, we can rearrange the equation:

BC = 7 in [tex]\times[/tex] cos(33°)

Calculating this expression, we find:

BC ≈ 7 in [tex]\times[/tex] 0.8387 (rounded to four decimal places)

BC ≈ 5.8709 in.

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The upper-left coordinates on a rectangle are ( − 1 , 7 ) (−1,7)left parenthesis, minus, 1, comma, 7, right parenthesis, and the upper-right coordinates are ( 4 , 7 ) (4,7)left parenthesis, 4, comma, 7, right parenthesis. The rectangle has an area of 20 2020 square units.

Answers

To find the dimensions of the rectangle, we need to determine the length of the base (or width) and the length of the height.

Given the upper-left coordinates (-1, 7) and upper-right coordinates (4, 7), we can see that the base of the rectangle runs horizontally along the x-axis. Therefore, the length of the base is the difference between the x-coordinates of the upper-right and upper-left corners:

Length of base = 4 - (-1) = 4 + 1 = 5 units

Next, we can determine the height of the rectangle. Since the upper-left and upper-right corners have the same y-coordinate (7), we know that the height runs vertically along the y-axis. However, the given information does not provide the coordinates of the lower-left or lower-right corners, so we don't have enough information to determine the exact height of the rectangle.

Therefore, we cannot determine the dimensions of the rectangle with the given information.

Find the missing measurement in the figure below (angles 1-6)

Answers

Using angle rules, the values of angles 1 to 6 are 64, 53, 116, 89, 32 and 44 respectively.

Angle 1

Angle 1 + 69 + 47 = 180 (sum of angles on a straight line)

Angle 1 = 180 - (69+47)

Angle 1 = 64°

Angle 2

Angle 2 + 64 + 63 = 180 (sum of angles in a triangle)

Angle 2 = 180 - (64+63)

Angle 2 = 53°

Angle 3

Angle 1 + Angle 3 = 180 (sum of angles in a triangle)

Angle 3 = 180 - 64

Angle 3 = 116°

Angle 6

Angle 6 + 136 = 180 (sum of angles on a straight line)

Angle 6 = 180 - 136

Angle 6 = 44°

Angle 5

Angle 5 + Angle 3 + 32 = 180 (sum of angles in a triangle)

Angle 5 + 116 + 32 = 180

Angle 5 = 180 - (116 + 32)

Angle 5 = 32°

Angle 4

47 + Angle 6 + Angle 4 = 180

47 + 44 + Angle 4 = 180

Angle 4 = 180 - 91

Angle 4 = 89°

Therefore, the values of angles 1 to 6 are 64, 53, 116, 89, 32 and 44 respectively.

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