Question

ΔPQR is right angled at Q. If PR= 13cm and QR= 5cm, find the length of PQ.

Answer 1

Answer:

Ans : 12

Step-by-step explanation:

By pythagoras theorem :

PQ =13 cm

QR=5 cm  and let the PQ is x

x^2+(5)^2=(13)^2

x^2+25=169

x^2=169-25

x^2=144

x =12

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