Question

A piece of wire is bent into an equilateral triangle of side 66cm. The wire is then bent into a circle. What is the radius of the circle. ​

Answer 1

length of the wire = 3 * 6.6 = 19.8cm

Circumference of the circle

2\pi r

Therefore,. [ question should be 6.6cm]

19.8 = 2 * 22/7 * r

19.8*7/22*2 = r

0.9*7/2 = r

6.3/2 = r.

3.15 cm = r