Question

The radius of a circle is 4 m. Find its circumference in terms of pi

Answer 1

The circumference of a circle with a radius of 4 meters is 8π meters, when expressed in terms of pi.

Step-by-step explanation:

The circumference of a circle can be found using the formula C = 2πr, where π (pi) is a constant approximately equal to 3.14, and r is the radius of the circle. In this problem, we are given that the radius (r) is 4 meters.

To find the circumference in terms of pi, we simply plug the known value into the formula:

C = 2π(4 m)

C = 8π meters

Therefore, the circumference of the circle, in terms of π, is 8π meters.

Answer 2

8
`\pi`

Step-by-step explanation:

Circles have the properties of:

2 radius = diameter

Let radius be r and diameter be d

diameter * pi = circumference

If 2r = d, then we can substitute

d = 8

Circumference = d*pi = 8*pi =
`8\pi`

I hope this helps :)