Area and Circumference

Circle Terms

100

The distance from the center of a circle to the outside, also half of the diameter

radius

200

The distance across the circle

diameter

300

The total distance around the circle

circumference

400

The total amount of space inside of a circle

area

500

Which of the following best describe the value of 𝜋(pi)? 

A. The relationship between the circumference and diameter

B. The relationship between the circumference and radius 

C. The relationship between the diameter and radius 

D. The relationship between the circumference and the center 

 

A. The relationship between the circumference and diameter

Circumference - Radius/Diameter

100

What is the circumference of a circle with the diameter of 2?

C = 6.28

200

Find Circumference when Radius - 10

62.83

300

Find Circumference when Radius = 25

157.08

400

What is the circumference of a circle with a diameter of 22?

C = 69.12

500

Find Circumference when Radius = 75

471.24

Area - Radius/Diameter

100

Find Area when Radius = 4

50.27

200

What is the area of a circle with a diameter of 6?

A = 28.27 

300

Find Area when Radius = 21

1,385.44

400

What is the area of a circle with a diameter of 10?

A = 78.54 

500

Find Area when Radius = 50

7,853.98

Radius/Diameter

100

If the radius is 5 what is the DIAMETER?

d = 10

200

If the diameter is 20 what is the RADIUS?

r = 10

300

If the radius is 30 the DIAMETER is?

d = 60

400

If the radius is 20 what is the DIAMETER?

d = 40

500

If the Radius is 50 what is the DIAMETER?

d = 100

Composite Figures

100

What is the area of the composite figure?

A = 44.13 square cm

200

Which measurement is closet to the area of the composite figure?

A = 19.81 inch²

300

Find the perimeter of the figure.

56 m

400

Find the perimeter

15.42 in.

500

Calculate the area. Use 3.14 for pi. Round to the nearest tenth if needed.

A = 23.1 m²