Question

If the circle has a radius of 10, what’s the circumference?

Answer 1

62.8

Explanation:

Circumference is Pi*diameter. We know radius is 1/2 of diameter. Giving this we know Diameter = 20.

Pi = 3.14

Diameter = 20

20x3.14 = 62.8

Answer: 62.8

Answer 2

62.8

Explanation:

Circumference of circle = 2 · π · r

r = 10

π = 3.14

We take

2 · 3.14 · 10 = 62.8

So, the circumference is 62.8