Question

A circle with a diameter of 36 inches is shown.

circle with diameter of 36 inches

What is the area of the circle using π = 3.14?

113.04 in2
452.16 in2
1,017.36 in2
4,069.44 in2

Answer 1

Answer:

A = 1,017.36 in²
The answer is option C

Step by step solved:

The formula to calculate the area of a circle is

A = πr²,

where A is the area and r is the radius of the circle. In this case, the diameter of the circle is given as 36 inches, so the radius is half of that, which is 18 inches.

Using the value of π as 3.14, we can plug in the values and calculate the area as follows:

A = πr²
A = 3.14 x 18²
A = 3.14 x 324
A = 1,017.36 in²

Therefore, the area of the circle with a diameter of 36 inches using π = 3.14 is 1,017.36 in². The answer is option C

Answer 2

1017.36 in²

Explanation:

Information we need to know:

Radius = diameter ÷ 2

Area of circle = πr²

1) Find the radius of the circle

We have to make sure the we are using the radius of the circle instead of the diameter as the formula using the value of r. If we were to use the diameter our answer would be wrong.

• 36 ÷ 2 = 18

2) Find the area

To find area we can distribute the numbers given into the formula...

• 3.14 (π) x 18 (r)² = 1017.36

Hope this helps, have a lovely day! :)