Circles Review

Match each word to its definition.

• Center to edge of the circle

• Area

• The distance around a circle.

• Diameter

• Distance across a circle

• Radius

• Space inside a circle

• Circumference

Drag the labels to show which circle shows a radius and which circle shows a diameter.

a

b

Diameter

Radius

The diameter of this circle is:

Mathematical Equivalence

ON

Tags

CCSS.7.G.B.4

The area of this circle is (use 3.14 to approximate for pi. Do not round your answer.)

Mathematical Equivalence

OFF

Tags

CCSS.7.G.B.4

The exact area of this circle in terms of pi is:

Mathematical Equivalence

OFF

Tags

CCSS.7.G.B.4

The exact circumference of this circle in terms of pi is:

Mathematical Equivalence

OFF

Tags

CCSS.7.G.B.4

The approximate circumference of this circle is (use 3.14 for pi):

Mathematical Equivalence

OFF

Tags

CCSS.7.G.B.4

Pair the radius to its diameter.

• Diameter of 5

• Radius of 2.5

• Radius of 3.39

• Radius of 3.55

• Diameter of 7.1

• Diameter of 6.78

Tags

CCSS.7.G.B.4

A circle has an area of 706.5 square feet. What is it's radius?

Mathematical Equivalence

ON

Tags

CCSS.7.G.B.4

Match each statement to what you would need to find.

• circumference

• the length of one spoke on a bicycle wheel.

• radius

• the amount of whipped cream to cover a pie.

• area

• The distance you travel on a ferris wheel