Question

a piece of a wire is bent into a shape of an equilateral triangle each side is 4.4 CM if it is rebent to form a circlular ring what is the diameter of a ring so formed

Answer 1

Perimeter of triangle = 3 x 4.4 = 13.2 cm
Perimeter of Circle = 13.2 cm
πd = 13.2
22/7 x d = 13.2
d = 13.2 x 7/22 = 4.2cm
The diameter of the ring formed is 4.2 cm.