Question

PQR is a triangle right angled at R if PQ =25 cm and PR =7 cm ,find QR​

Answer 1

Step-by-step explanation:

PQ=25cm

PR=7cm

QR=?

By the phythagoras theorem

(PR)^2+(QR)^2=(PQ)^2

(7)^2+(QR)^2=(25)^2

49+(QR)^2=625

(QR)^2=625-49

(QR)^2=576

QR=(576)^1/2

QR=24