Circles Review 2024

Front

What is the diameter of a circle if the radius is 23 feet?

Back

46 feet

Front

If the circumference of a circle is 22π ft, what is the radius?

Back

11 ft

Front

What is the formula to find the circumference of a circle?

Back

Circumference = 2πr, where r is the radius.

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 × Radius.

Front

How far do you travel in one rotation of a Ferris wheel with a diameter of 120 meters?

Back

About 380 meters.

Front

What is the radius of a circle with a diameter of 16 inches?

Back

8 inches.

Front

What is the formula to find the area of a circle?

Back

Area = πr², where r is the radius.

Front

If a circle has a radius of 10 ft, what is its diameter?

Back

20 ft.

Front

What is the circumference of a circle with a radius of 5 ft?

Back

10π ft.

Front

What is the diameter of a circle if the circumference is 31.4 ft?

Back

10 ft.