Question

If radius of incircle of an equilateral triangle is 3.12cm then what is the radius of circumference of that equilateral triangle?

Answer 1

Answer:

Question 3: What is the ratio of circumference of circumcircle & circumference of incircle of an equilateral triangle? The ratio of circumradius (R) & inradius (r) in an equilateral triangle is 2:1, so R/ r = 2:1. The ratio of circumradius (R) & inradius (r) in an equilateral triangle is 2:1, so R/ r = 2:1.