## Circles: Radius, Diameter, Circumference, Area

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Grade Level Estimation: 1st

2nd

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5th

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Print out these worksheets on circles. Practice naming circles and calculating circumference, radius, diameter, and area of a circle.

Click on the the core icon () below specified worksheets to see connections to the Common Core Standards Initiative.

Circumference and Area (Intermediate)

Circumference of a Circle 1 FreeThe diameter of each circle is shown. Students must calculate the circumference, or the distance around the circle.

Circumference of a Circle 2 MemberThe radius of each circle is drawn. Pupils must figure out the distance around the edge of the circle, or circumference.

Circumference of a Circle 3 MemberEach circle picture shows a radius or diameter. Students must use this information to figure out the circumference.

Finding Pi Project MemberStudents measure various circular objects and divide the circumference by the diameter to get pi.

Circle Questions MemberStudents answer the short answer questions about circles, circumference, and pi.

Area of a Circle 1 MemberA radius is drawn on each circle shape. Find the area of the circle.

Area of a Circle 2 MemberEither the diameter or the radius is shown on each shape. Calculate the area for each.

Area of a Circle 3 MemberUse the formula pi-r-squared to calculate the area of each circle.

Area of a Circle 4 MemberDetermine the area of each circle. Includes a sample problem at the top.

Area and Circumference MemberStudents will need to find both the area and circumference for each circular shape.

Pi Song MemberWhen your students sing the pi song, they'll never forget how to calculate the circumference and area of a circle.

Radius and Diameter (Basic)

Naming the Radius & Diameter FreeCan you name the diameter and diameter of each of these circles?

Calculate Radius & Diameter of Circles FreeFind the radius and diameter of these circles.

Another Radius & Diameter Worksheet MemberFind the diameter and radius of each circle. Also, figure out which circles are the largest, which are the smallest, and which are the same size.

Radius, Diameter, and Circumference MemberDetermine the diameter, radius, and circumference of each of these circles.

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