Question

If a triangle ABC is an isosceles right- triangle right angled at A . If AB = 24 cm and AC = 7 cm, then BC = ?​

Answer 1

Given Δ ABC is right-angled at A with AB=24 cm, AC=7 cm.

Then using Pythagoras theorem we get,

AB 2+AC 2 =BC 2

or, 24²+7² =BC 2

or, BC²=625

or, BC=25.

So BC=25 cm.