Math, asked by Harishhr2822, 5 months ago

In angle PQR,Q=90 degrees, PQ=12cm, QR=5cm. write down the value of each of the following 1.1 sin P
1.2 cos P

Answers

Answered by saurabhr777
0

Answer:

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Step-by-step explanation:

MATHS

In right angled triangle PQR, if ∠Q=90

,PR=5,QR=4 then find PQ and hence find tanR.

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ANSWER

R.E.F.image

In △PQR,∠PQR=90

BY Pythagoras theorem,

PR

2

=PQ

2

+QR

2

⇒(5)

2

=PQ

2

+(4)

2

⇒(5)

2

−(4)

2

=PQ

2

⇒PQ

2

=25−16

⇒PQ

2

=9

⇒PQ=

9

⇒PQ=3

tanR=

QR

PQ

=

4

3

.

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