Question

In an isoceless triangle PQR PR=QR and PQ square =2PR square then angle R=?

Answer 1

90 degree
Isosceles triangle, PQ^2= 2PR^2=PR^2+QR^2. Hence <R=90
 

Answer 2

Sry,can i know ,what does the word 'square' stands for?i mean,is it like this-
PQ^2=2(PR)^2
Is it right??