Question

In a right angle triangle PAR right angled at Q, if PQ = 8 cm and PR = 10 cm . Find QR ​

Answer 1

Answer : R.E.F image

In △ PQR using pythagoras theorem

(PR)

2

=(PQ)

2

+(QR)

2

625-49=(QR)

2

(QR)

2

=576

QR=24CM

now tan P =

7

24

and tan R =

24

7

tanP-tanR=

7

24

−

24

7

=

168

576−49

=

168

527

Answer 2

Answer:

QR=2cm

Step-by-step explanation:

given : right angled tringle PQR

Q = 90°

PQ=8cm

PR =10cm

QR = ?

Using Pythagoras theorem,

In triangle PQR

PR = PQ + QR

QR = RQ - PR

QR = 10 - 8

QR = 2cm