Question

What is the area of a circle with a radius of 6 ft? Use 3.14 for π. Round to the nearest tenth if necessary.

Answer 1

Explanation:

write what you know

A = pi x r^2

r = 6ft

Annd plug and chug

Answer 2

`\boxed {\boxed {\sf a \approx 113.0 \ ft^2}}`

Explanation:

The area of a circle is the space inside the shape. The formula is:

`a= \pi r^2`

We know the radius of the circle is 6 feet and we are using 3.14 for pi.

• r= 6 ft
• π= 3.14

Substitute the values into the formula.

`a= (3.14) * (6 \ ft)^2`

Solve the exponent.

• (6 ft)² = 6 ft * 6 ft = 36 ft²

`a= (3.14) * 36 \ ft^2`

Multiply.

`a=113.04 \ ft^2`

Let's round to the nearest tenth. The 4 in the hundredth place tells us to leave the 0 in the tenths place.

`a \approx 113.0 \ ft^2`

The area of the circle is approximately 113.0 square feet.