Question

a piece of wire is bent in the shape of an equilateral triangle of each side 6.6 cm. It is rebent to form a circular ring. what is the diameter of the Ring?

Answer 1

perimeter of triangle = 6.6+6.6+6.6 = 19.8cm
perimeter of triangle = circumference of circular ring
19.8 = 2πr = 2×22/7×r
19.8×7/22×2 = r
3.15 = r
radius of circular ring = 3.15 cm
diameter of circular ring = 2×r = 2×3.15 = 6.3cm

Answer 2

may this helps you!!!