Question

ABCD is a isosceles triangle right angled at C prove that a b square is equals to 2 AC square

Answer 1

hope it will help you

Answer 2

since the triangle isosceles the other 2 sides except the hypotanuse ( which is the longest side)

if c =90

then AC=BC

according to Pythagoras theorem :

ABSq=ACSq+BCsq

or we can write :

ABsq=2ACSq

hence proved

hope it helps u