Question

Find the exact circumference of a circle with diameter equal to 8 ft. 8 ft. 16 ft. 64 ft.

Answer 1

Answer:
`8\pi\ \text{ft.}`

Explanation:

We know that formula to calculate the circumference of a circle is given by :-

`\text{Circumference}=\pi d`, where d is the diameter of the circle.

Given: The diameter of the circle :
`d=\ 8\ ft.`

Then , the circumference of a circle is given by :-

`\text{Circumference}=\pi (8)=8\pi\ \text{ft.}`

Hence, the exact circumference of a circle with diameter equal to 8 ft =
`8\pi\ \text{ft.}`

Answer 2

`8\pi\ ft`

Explanation:

we know that

The circumference of a circle is equal to

`C=\pi D`

where

D is the diameter

we have

`D=8\ ft`

substitute

`C=\pi (8)=8\pi\ ft`