Question

If ∆ABC is Isosceles triangle right angled at c. prove that AB²=2AC²​

Answer 1

Step-by-step explanation:

if it is right at C then AB will be hypotenuse

and by Pythagoras theorem

AB^2= AC^2+BC^2

but it has given that it is a isosceles triangle

so that means AC=BC

so AB^2=2AC^2