Question

please solve it properly ,according to class 7 , full explanation


1 . PQR is a triangle , right angled at P. If PQ = 10 cm and PR= 24 cm , find QR​

Answer 1

Step-by-step explanation:

Given: PQ = 10 cm, PR = 24 cm

Let QR be x cm.

In right angled triangle QPR,

(Hypotenuse)2= (Base)2+ (Perpendicular)2 [By Pythagoras theorem]

⇒ (QR)2= (PQ)2+ (PR)2

⇒ x2=(10)2+(24)2

⇒ x2 = 100 + 576 = 676

⇒ x=

√

676

= 26 cm

Thus, the length of QR is 26 cm.

Answer 2

pls check the image attached.