Partial Circles
Circumference
Area
Circumference/Area Irregular Shapes
100

Find the area:


A=25.12 cm2

100
What is the circumerence of a circle with the diameter of 2?
6.28
100
Find Area when Radius = 4
50.27
100

What is the perimeter?

10.28 inches

200

Find the perimeter:


P=41.12 cm

200
What is the circumference of a circle with a diameter of 4?
12.57
200
Find Area when Radius = 14
615.75
200

What is the area?

7.14 inches squared

300

Find the area:


A=2461.76 cm2

300
What is the circumference of a circle with a diameter of 22?
69.12
300
What is the area of a circle with a diamater of 6?
28.27
300

What is the perimeter of the whole shape?

55.7 inches

400

Find the perimeter:


P=199.92 cm

400
Find Circumference when Radius - 10
62.83
400

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

78.54

400

What is the area of the whole shape?

Rectangle: 150

Circle: 39.25

Total: 189.25 square inches

500

Find the area the dog has to play and how much fencing you would need in order to keep the same area but keep the dog off-leash:

A = 942 ft2

P = 94.2 ft (would not need to add the straight parts because the fence would meet up wit the house)

500

If the circumference is 157, what is the radius?

Radius = 25

500
What is the area of a circle with a diameter of 20?
314.16
500

What are the perimeter and the area?

Perimeter 51.98 cm

Area: 132.93 cm2

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