Circle Terminology
Area of Circle
Circumference of Circle
100
A line crossing from one side of the circle, through the center, touching the other side of the circle.

What is the diameter?

100

Radius: 4cm (Find the area in terms of pi.)

What is 16pi cm^2?

100

What is 16 pi cm^2?

200

The distance around a circle

What is a circumference?

200

Diameter: 16 inches (Give the answer in terms of pi; include units!)

What is 64pi inches^2?

200

When laid flat, a round parachute has a radius of 4 yards. What is the parachute's circumference? (answer in terms of pi; include units!)

What is 8pi yards?

300

What is the radius?

300

If the circumference of a circular sheet is a 12pi meters, find the area. (Find area in terms of pi; include units!)

What is 36 pi meters^2?

300

The diameter of a wheel is 70 cm. Find the circumference. (Answer in terms of pi; include units!)

What is 70pi cm?

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