Circumference and Area of a Circle Quiz

What is the circumference of a circle with a radius of 4 cm?

• 8π cm

• 16π cm

• 25.12 cm

• 12.56 cm

Tags

CCSS.7.G.B.4

If the circumference of a circle is 31.4 cm, what is the radius?

• 5 cm

• 10 cm

• 15.7 cm

• 20 cm

Tags

CCSS.7.G.B.4

A circle has an area of 78.5 square cm. What is the radius of the circle?

• 5 cm

• 10 cm

• 15 cm

• 20 cm

Tags

CCSS.7.G.B.4

The diameter of a circle is 18 cm. What is the circumference of the circle?

• 18π cm

• 36π cm

• 9π cm

• 56.52 cm

Tags

CCSS.7.G.B.4

If the radius of a circle is tripled, how does the circumference change?

• It triples

• It doubles

• It increases by six times

• It remains the same

Tags

CCSS.7.G.B.4

A circular garden has a circumference of 62.8 meters. What is the diameter of the garden?

• 10 meters

• 20 meters

• 30 meters

• 40 meters

Tags

CCSS.7.G.B.4

Find the area of a circle with a diameter of 14 cm.

Tags

CCSS.7.G.B.4

A circular track has a radius of 25 meters. What is the length of the track (circumference)?

• 50π meters

• 100π meters

• 150π meters

• 200π meters

Tags

CCSS.7.G.B.4

If the area of a circle is 314 square cm, what is the circumference of the circle?

• 20π cm

• 40π cm

• 60π cm

• 80π cm

Tags

CCSS.7.G.B.4

A wheel makes 1000 revolutions to cover a distance of 31,400 meters. What is the radius of the wheel?

• 5 meters

• 10 meters

• 15 meters

• 20 meters

Tags

CCSS.7.G.B.4