Question

a piece of wire is bent in the shape of equilateral triangle of side 6.6 cm It is ribbon in the shape of ring what is the diameter of ring​

Answer 1

Perimeter of equilateral triangle(P) = 3a

a=Lt. of side=6.6 cm

=> P= 19.8 cm

Now,

P = circumference of circular ring

P =2πR

19.8 =2×3.14×R

R=3.15 cm

diameter=2R=6.3 cm

............

hope it help you❤❤