# Radius & Diameter, Circumference & Area

## Circles: Radius, Diameter, Circumference, Area

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Grade Level Estimation: 1st
2nd
3rd
4th
5th

Grade level may vary depending on location and school curriculum. The above estimate is for schools in the USA.

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Common Core Standards

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Common core standards listing.
Common Core Standards

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Common Core Standards

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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 Free

The diameter of each circle is shown.  Students must calculate the circumference, or the distance around the circle.

Circumference of a Circle 2 Member

The 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 Member

Each circle picture shows a radius or diameter.  Students must use this information to figure out the circumference.

Finding Pi Project Member

Students measure various circular objects and divide the circumference by the diameter to get pi.

Circle Questions Member

Students answer the short answer questions about circles, circumference, and pi.

Area of a Circle 1 Member

A radius is drawn on each circle shape.  Find the area of the circle.

Area of a Circle 2 Member

Either the diameter or the radius is shown on each shape. Calculate the area for each.

Area of a Circle 3 Member

Use the formula pi-r-squared to calculate the area of each circle.

Area of a Circle 4 Member

Determine the area of each circle. Includes a sample problem at the top.

Area and Circumference Member

Students will need to find both the area and circumference for each circular shape.

Pi Song Member

When 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 Free

Can you name the diameter and diameter of each of these circles?

Calculate Radius & Diameter of Circles Free

Find the radius and diameter of these circles.

Another Radius & Diameter Worksheet Member

Find 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 Member

Determine the diameter, radius, and circumference of each of these circles.

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