1.

1 pointIn a triangle PQR MN II QR if PN=3.6 cm NR=2.4 cm and PQ=5 cm then PM is​

Answer» ONG>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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