Area of Circle Worksheets

There are six sets of circle worksheets:

• Circumference Worksheets
  
• Area of Circle Worksheets
  
• Area & Circumference Worksheets
  
• Find Radius from Circumference
  
• Find Radius from Area
  
• Find Area from Circumference or vice versa
  

Examples, solutions, videos, and worksheets to help grade 7 and grade 8 students learn how to find the area of a circle given its radius or diameter.

How to find the area of a circle?

There are two sets of area of circle worksheets

• Area of circles (inches, ft, yard)
• Area of circles (mm, cm)

Given the radius
If you are given the radius of a circle, you can use the following formula to find the area of a circle:

A = πr²

Where:

• A is the area of the circle.
• π (pi) is a mathematical constant approximately equal to 3.14159…
• r is the radius of the circle.

Example:
Find the area of a circle with a radius of 6 units. Use 3.14 for π.
A = πr² = (3.14)(6)² = 113.04 units²

Given the diameter
If you are given the diameter (which is twice the radius) then you would need to divide the diameter by 2 to get the radius and the use the formula A = πr²

Example:
Find the area of a circle with a diameter of 8 units. Use 3.14 for π.
Divide the diameter by 2 to get the radius. Radius = 8 ÷ 2 = 4
A = πr² = (3.14)(4)² = 50.24 units²

Have a look at this video if you need to review how to the area of a circle.

• How to Find the Area of a Circle

Click on the following worksheet to get a printable pdf document.
Scroll down the page for more Area of circle Worksheets.

 

More Area of circle Worksheets

Printable
(Answers on the second page.)
Area of circle Worksheet #1 (inches, feet, yard)
Area of circle Worksheet #2 (mm, cm)

Online
Circumference of Circle
Area of Circle
Area & Circumference of Circle

Circle Problems: Circumference, Area
Circle Word Problems 1
Circle Word Problems 2

Area of shaded regions that include circles
Area of figures that include circles
Area of figures that include circles

Arc Length & Area of Sector (Degrees)
Arc Length & Area of Sector (Radians)
Convert between Radians and Degrees

Related Lessons & Worksheets

Circumference of a Circle

More Printable Worksheets

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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