Question

Find the exact circumference of a circle with the given radius. 5 inches C = 2.5 in. 10 in. 25 in.

Answer 1

Answer: The exact circumference of the circle is
`10\pi[\tex] in.</strong></p><p><strong>Step-by-step explanation:</strong></p><p>Since, the circumference of a circle is,</p><p>[tex]C=2\pi r`

Where, r is the radius of the circle,

Here, r = 5 inches,

Hence, the circumference of the circle is,

`C = 2\pi(5) = 10\pi\text{ in}`

Thus, The exact circumference of the circle is [tex]10\pi[\tex] in.

Answer 2

If the given radius is 5 inches, then the circumference, C is 2pi r, or 2pi(5 inches) = 10pi inches.  You MUST include pi in your calculation of C.