Question

Find the area of the circle with the given radius or diameter. Use pi = 3.14. d = 13 A=?

530.66 sq. units
265.33 sq. units
132.665 sq. units

Answer 1

The answer is 132.665

6.5 × 6.5 × 3.14 = 132.665

Hope this helped!

Answer 2

Hello!

The formula for finding area of a circle is: π · r²

Diameter is 2x the radius. To find the radius when the diameter is given, divide the diameter by 2.

The diameter is 13. 13 ÷ 2 = 6.5

r = 6.5
6.5² = 6.5 × 6.5 = 42.25

π = 3.14

Multiply 3.14 by 42.25 to get the area

3.14 × 42.25 = 132.665

The area of the circle is 132.665 sq. units, which is the last option.