Question

In a right triangle ABC, < B = 90°. If AC=13cm, BC= 5cm, find AB ​

Answer 1

AB = 12cm

Explanation:

ABC is the right triangle, that means we can use theorem: AC²=AB²+BC²

AB²=AC²-BC²=13²-5²=169-25= 144

AB=√144

AB=12cm