Question

Can someone help me please??​

Answer 1

Circumference

The circumference of a circle is its perimeter.

We can solve for the circumference using the following formula:

• 
  `C=2\pi r` where r is the radius of the circle

Solving the Question

Part A

We're given:

• The radius of the circle is 14 cm

Plug the given information into the formula for circumference:

`C=2\pi r\\C=2\pi (14)\\C=28\pi`

Therefore, the circumference of the circle is 28π cm.

Part B

Replace π with
`(22)/(7)`:

`C=28\pi\\\\C=28*(22)/(7)\\\\C=4*22\\C=88`

Therefore, the circumference of the circle with
`\pi=\frac{22}7}` is 88 cm.