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Perimeter and Area

Problems

Circumference and Area of a Circle

How to Cite This SparkNote

Diagram of a Circle

Problem : What is the diameter of a circle with radius 7?

14

Problem : What is the circumference of a circle with radius 7?

43.96

Problem : What is the area of a circle with radius 7?

153.86
Diagram of a Circle

Problem : What is the radius of a circle with diameter 8?

4

Problem : What is the circumference of a circle with diameter 8?

25.12

Problem : What is the area of a circle with diameter 8?

50.24

Problem : What is the radius of a circle with area 23?

2.71

Problem : What is the diameter of a circle with area 23?

5.42

Problem : What is the circumference of a circle with area 23?

17.0

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