Question

Find the area of the circle to the nearest hundredth. Use 3.14 or

22
7
for
4 in.
area: about
in. 2

Answer 1

50.24 in.

Explanation:

Step 1: Define/explain/formula.

To find the area of a circle, multiply the radius by itself twice, then multiply the product by pi.

Definitions:

• The diameter is the length through the center.
• The radius is half of the diameter.
• The area of a circle is the amount of interior space enclosed by a circle.
• The circumference of a circle is the distance around the circle.
• 'π' means pi.

`a=\pi r^2(3.14*radius*radius)`

Step 2: Solve.

The radius of this circle is 4.

Now, we simply plug the numbers into the formula.

`\pi4^2(3.14*4*4)=50.24`

Step 3: Conclude.

Therefore, the area of this circle is 50.24 in.