Question

Find the circumference and area. Use 3.14 for pi.

Answer 1

The circumference of the circle is 72.22 mm.

Circumference can be found by multiplying pi or 3.14 by the diameter.

C=
`\pi`×d

C=3.14×23 mm

C=72.22 mm

The area of the circle is 415.265 mm².

A=
`\pi`r²

A=3.14×11.5² mm

A=3.14×132.25 mm

A=415.265 mm²