Question

The diameter of a circle is 2 inches. What is the circle's circumfere

Use 3.14 for u.
PLS HELP!!!

Answer 1

6.28in or 6.3in

Explanation:

All I did was multiply pie by diameter or multiply it by its radius, which is 1.

C = 2(3.14)(1)

= 6.28

or

C = (3.14)(2)

= 6.28

Answer 2

`6.28\:\mathrm{in}`

Explanation:

The circumference of a circle is given by
`C=2r\pi`, where
`r` is the radius of the circle. Since all radii of a circle are exactly half the length of all diameters of a circle, if the diameter is 2 inches, we know the radius is 1 inch.

Therefore, we have:

`C=2(1)\pi=2\cdot 1\cdot 3.14=\boxed{6.28\:\mathrm{in}}`