Circle Formulas Review

If the diameter of a circle is 12 ft, what is the circle's radius?

• 4 ft

• 6 ft

• 12 ft

• 24 ft

Tags

CCSS.7.G.B.4

Find the area of the circle.

• 31.4m²

• 78.5 m²

• 314 m²

• 985.96 m²

Tags

CCSS.7.G.B.4

Find the circumference of this circle.

• 15.7 m

• 31.4 m

• 58.5 m

• 62.8 m

Tags

CCSS.7.G.B.4

Find the area of the figure.

Tags

CCSS.7.G.B.4

The radius of a circle is 1.5 cm. What is the diameter of the circle?

• 1.5 cm

• 3 cm

• 2.25 cm

• 4.5 cm

Tags

CCSS.7.G.B.4

Scott and his sister ran around a circular track at their family's gym. Scott ran on the outside of the track where the diameter is 25 ft. His sister ran on the inside of the track where the diameter is 18 ft. How much farther did Scott run than his sister if they went around the track one time?

• 21.98 ft

• 56.52 ft

• 78.5 ft

• 135.02 ft

Tags

CCSS.2.MD.A.1

Hector ordered a large pizza from Papa John's, which has a diameter of 18 inches. He ate \frac{1}{3} of a pizza. How many square inches of pizza did Hector eat?

Tags

CCSS.7.G.B.4

Which is the correct formula to answer the question?

• Central = arc

• 2 * inscribed = arc

Tags

CCSS.HSG.C.A.2

Which is the correct formula to answer the question?

• Central = arc

• 2 * inscribed = arc

Tags

CCSS.HSG.C.A.2

Which is the correct formula to answer the question?

• Central = arc

• 2 * inscribed = arc

Tags

CCSS.HSG.C.A.2