Question

Draw a right triangle with 5 cm and 7 cm perpendicular sides. Find its perimeter.

Answer 1

20.6 (3sf)

Explanation:

a^2 + b^2 = c^2

5^2 + 7^2 = 74

c= root 74

5 + 7 + root 74 = 12 + root 74 = 20.6 (3sf)