Circle Review

The distance around a circle is

• Circumference

• Radius

• Center

• Central Angle

Tags

CCSS.HSG.C.B.5

CCSS.HSG.GMD.A.1

What is the radius of this circle?

• 18 in

• 10 in

• 9 in

• 8 in

What is the diameter of this circle?

• 3.5 m

• 3 m

• 5 m

• 7 m

Tags

CCSS.7.G.B.4

Solve for the area of the circle if the radius is 8 mm.

• 50.27 $mm^2$

• 25.13 $mm^2$

• 201.06 $mm^2$

• 100.53 $mm^2$

Solve for the circumference of a circle if the diameter is 15 inches

• 94.25 inches

• 23.56 inches

• 47.12 inches

• 706.86 inches

If the area of the circle = 153.94 $cm^2$ , what is the diameter? 

• 7

• 14

• 24.5

• 49

What is the diameter of this circle?

• 32 cm

• 8 cm

• 16 cm

An architect is making a plan for a new circular playground. If the picture below is the playground, how much fencing needs to go up to keep the kids in the circle? Use 3.14 for π.

• 3,215 m

• 201 m

• 402 m

• 100 m

Tags

CCSS.7.G.B.4

The circumference of a circle is 36.31 meters. What is the approximate length of the radius? Use 3.14 for π.

• 3 m

• 4 m

• 5 m

• 6 m

A bicycle trail in the shape of a circle has a diameter of 3 miles. Kiersty biked around the trail 4 times. About how far did Kiersty bike? Use 3.14 for π.

• 38 miles

• 40 miles

• 35 miles

• 33 miles

Tags

CCSS.7.EE.B.3

CCSS.7.G.B.4