Question

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

Use 3.14 for pi

Answer 1

Answer:

380.13

Step-by-step explanation:

Answer 2

Answer:

379.94

Step-by-step 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:

$22\div2=11=\text{radius}$

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

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

Hope it helps!!!!!