Question

In a right angled ∆ABC , ∠B=90° . If AB = 8 cm, BC = 15 cm , find perimeter of ∆ABC.
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Answer 1

Answer:

40 cm

Step-by-step explanation:

Refer the above attachment.

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Answer 2

Answer:

40 cm

Step-by-step explanation:

Perimeter of a triangle=sum of all the sides

AB=8 cm

BC=15 cm.

Thus AC²=AB²+BC²=(8)²+(15)²=289

AC=17 cm

Therefore perimeter =AB+BC+CA=8+15+17=40