Question

Estimate the diameter of a circle with a circumference of 80 feet

1. 12.74 feet
2. 25.48 feet
3. 40 feet
4. 50.96 feet

Answer 1

2) 25.48

The diameter of the circle d = 25.48

Explanation:

Step(i):-

we know that the diameter of a circle d = 2 r

The circumference of the circle = 2π r

Given that the circumference of the circle = 80 feet

Step(ii):-

The circumference of the circle = 2π r = 80

⇒ π (2r )= 80

⇒ πd = 80

⇒
`d = (80)/(3.14)`

d = 25.477

Final answer:-

The diameter of the circle d = 25.477