Question

The diameter of a circle is 22 millimeters. What is the circle's area?

Use 3.14 for pi

Answer 1

380.13

Explanation:

Answer 2

379.94

Explanation:

The area of a circle is
`\pi r^2 \text{ where r is the radius}`

But, it has given us the diameter, and diameter is two times the radius, so:

`22/2=11=\text{radius}`

Then, we subsitute 11 in the formula and we get:

`\pi 11^2=121\pi \text{ or } 379.94 \text{ millimeters }`

Hope it helps!!!!!