Sum No. 4 Exercise 6.5 class 10th
SUM NO.4: - ABC is an isosceles triangle right angled at C. Prove that AB 2 =2A C 2 Solution :- Using Pythagoras theorem in △ACB AB 2 =AC 2 +B C 2 AB 2 =AC 2 +A C 2 (AC=BC) ( ABC is an isosceles triangle right angled, ∴ AC=BC) so, AB 2 =2AC 2