Question

PQR is a triangle, right angled at P. If PQ is 12cm and PR is 5cm, find QR.

Answer 1

Step-by-step explanation:

AC = 5 m

and AD = 12 m

In right triangle ∆CAD,

AD2 + AC2 = CD2 (By Pythagoras property)

⇒ (12)2 + (5)2 = CD2

⇒ 144 + 25 = CD2

⇒ 169 = CD2

∴ CD = 169−−−√ = 13 m