Circle Quiz Review

Circumference of a Circle

100

What is the equation (s) for the circumference of a circle? 

C=2πr  or  C=πd

200

Find the Circumference of a Circle with a diameter of 2 yards. Use 3.14 for pi and Round to the tenth place.

6.28 yds

300

Find the Circumference of a Circle with a diameter of 5 yards. Use 3.14 for pi and Round to the tenth place

15.7 yds

400

Find the Circumference of a Circle where the radius = 9.5 inches. Round to 1 decimal place.

59.7 in

500

Find the radius of a circle with a circumference of 942 meters.

150 meters

Area of Circles

100

What is the equation for the area of a circle?

A=πr²

200

Find the area of a circle with a radius of 5 cm. Use 3.14 for pi.

A = πr²

78.5 cm2

300

Find the area of a circle with a radius of 3 km. Use 3.14 for pi. 

28.26 km²

400

Find the area of a circle with the diameter of 12 km.          (Remember A = πr² )

113 km² 

500

Find the area of a circle with a diameter of 78.4 ft.

39.2 ✖ 39.2 ✖ 3.14

    =4825 ft²

    

Area and Circumference of a Circle

100

What is the circumference of a circle with a diameter of 1 foot?

3.14 ft

200

What is the area of a circle with a radius of 1 foot? 

Hint (Remember Area = πr²

3.14 ft² 

300

What is the circumference of a circle with a diameter of 4 meters?

12.56 m

400

What is the area of a circle with a radius of 2 meters?

12.56 m²

500

What is the circumference of a circle with a diameter of 8 miles?

25.12 mi

Miscellaneous

100

What is the name of your favorite ELA teacher of all time?

Mrs joiner

200

Name the best science teacher at wjw.

Mrs. wright

300

Who is the greatest Social Studies teacher ever?

Mrs. H

400

Who is obviously the greatest math teacher you will ever have the privilege of learning from? 

Mrs Blair

500

Find the radius of the circle given the circumference of 62.8 mi. Remember: C = πd

10 mi

Vocabulary

100

What do we call the two-dimensional figure that is 360 degrees with no straight lines?

A Circle

200

What is the term that describes the perimeter of a circle?

Circumference

300

What is the term used to describe a line that runs from the center of a circle to any point on the edge of the circle?

Radius

400

What is the term that describes the line that extends from one side of a circle to the opposite side, passing through the center?

Diameter

500

What is the ratio of a circle's circumference to its diameter called?

Pi, π, 3.14, 22/7