Review of Circles - 7th Grade Math

Review of Circles - 7th Grade Math

Vocabulary Review

Multiple Choice

A _______ is a line segment that goes from the center to the edge of a circle.

• radius

• diameter

• circumference

Multiple Choice

A _______ is a line segment that goes from one edge of a circle to the other and passes through the center.

• radius

• diameter

• circumference

Multiple Choice

The _______ of a circle is the distance around the circle.

• radius

• diameter

• circumference

Radius and Diameter Relationship

Multiple Choice

If the radius of a circle is 5, what is the diameter?

• 2.5

• 5

• 10

Multiple Choice

If the radius of a circle is 8, what is the diameter?

• 4

• 8

• 16

Multiple Choice

If the diameter of a circle is 10, what is the radius?

• 5

• 10

• 20

Multiple Choice

If the diameter of a circle is 8, what is the radius?

• 4

• 8

• 16

Find the Circumference

 $C=\pi d$  

Multiple Choice

If the diameter is 10, what is the circumference?

• 15.70796327

• 31.41592654

Multiple Choice

If the diameter is 13, what is the circumference?

• 40.8407045

• 81.68140899

Find the Area of the Circle

 $A=\pi r^2$  

Multiple Choice

If the radius is 5, which formula represents the area of a circle?

 $A=\pi r^2$  

•  $A=\pi5^2$  

•  $A=\pi10^2$  

Multiple Choice

If the radius is 8, which formula represents the area of a circle?

 $A=\pi r^2$  

•  $A=\pi4^2$  

•  $A=\pi8^2$  

Great work today!