Circle Area Circumference Terms Pi

Find the circumference, in "in terms of pi" of a circle with a RADIUS of 8 inches.

• 8π inches

• 64π inches

• 4π inches

• 16π inches

Find the area, in "in terms of pi" of a circle with a RADIUS of 11 inches.

• 11π inches²

• 22π inches²

• 44π inches²

• 121π inches²

Find the area, in "in terms of pi" of a circle with a diameter of 8 inches.

• 8π inches²

• 64π inches²

• 4π inches²

• 16π inches²

What is the radius of this circle?

• 20 in

• 10 in

• 40 in

• 10 in²

What is the radius of this circle?

• 140 mi

• 35 mi

• 70 mi

• 70 mi²

What does "circumference" mean?

• Space a circle takes up

• Distance around a circle

• Line from one side of a circle to another

• Line from center of circle to side

What is the diameter?

• 8

• 16

• 10

• 4

The radius is....

• a line that crosses through the center and touches each edge 

• the center point of a circle 

• a line from the center point to the edge of the circle

• an element in science

What is the diameter of this circle?

• 3.5

• 3

• 5

• 7

Choose the answer which best describes how these formulas are related to each other.

• They both solve for circumference. In the first formula it uses diameter, in the second formula it uses two times the radius, which is the same thing as diameter.

• They both solve for circumference, in the first uses diameter and the second uses pi.

• They both solve for area. In the first formula it uses diameter, in the second formula it uses two times the radius, which is the same thing as diameter.

• They both use circumference to solve for pi. One uses radius, the other uses diameter.