Area
Peirce Pappin has baked a circular cake. The cake has a diameter of 10 inches. Sam needs to know how much icing it will take to cover the top of the cake, which of the following was does Sam need to use to figure this out?
5 x 5 x 3.14
What is the circumference of a circle with a radius of 8?
16π
What is circumference?
The perimeter of a circle
What is the radius of a circle given the diameter is 22?
Jamal has a circular swimming pool with are radius of 7 feet. If he wants a cover to go over the pool what is the least amount of material needed to cover the pool?
153.86 feet squared
What is the circumference of a circle with a radius equal to 7?
14π
What is diameter?
A line that goes straight through the circle
What is the diameter of a circle with a radius of 9?
18
The radius of a circle is 3 inches. What is the area?
28.26 inches squared
If a circle has a diameter of 12 inches, what is its circumference?
12π inches
What is radius?
A line that stops in the middle of the circle, half of the diameter
What is the diameter of a circle with an area of 144π?
24
The diameter of a circle is 8 centimeters. What is the area?
50.24 cm squared
If a circle has an area of 81π, what is the circumference of the circle?
18π
What is area?
Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.
What is the radius of a circle that has a circumference of 36π?
18
A circle has a radius of 12 inches. What is the area of the circle?
452.16 inches squared
If a circle has an area of 16πin2, what is the circumference?
8π in
What is pi?
Pi is the ratio of the circumference of any circle to the diameter of that circle. Regardless of the circle's size, this ratio will always equal pi. In decimal form, the value of pi is approximately 3.14.
What is the diameter of a circle that has a circumference of 25π?
25