A triangle PQR is right angled at R, with PQ=80cm and R=60cm. find QR?
pythagorus theorem

Answers

Answer 1

Answer:

Solution given:

A triangle PQR is right angled at R, with hypotenuse{h}PQ=80cm

and

base[b]PR=60cm.

perpendicular [P]= QR

by using Pythagoras law

=+

80²=QR²+60²

QR²=80²-60²

QR=[tex]\sqrt{2800}[/tex]

QR=20[tex]\sqrt{7}[/tex]=52.9=53cm

QR=53cm.


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Question 2
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Step-by-step explanation:

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Answer:

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If the square root of n = 3/2, what is the negative square root of n ?

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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Answer:

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Step-by-step explanation:

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Answer:

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Answer:

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Answer:

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Answers

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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Answer:

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Answer:

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Answers

Answer:

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Step-by-step explanation:

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