Question

In a right-angled triangle ,right angled at B,if AB=5cm andAC=13cm ,then BC=

Answer 1

BC = 12cm

Explanation:

by phythagoras theorm

AB² + BC² = AC²

5² + BC² = 13²

25 + BC² = 169

BC² = 169 - 25

BC² = 144

BC = √144

BC = 12cm

Answer 2

I’ve attached my work below...
Hope it helps!