Parts of a Circle

Front

The distance all the way around the circle is called the...

Back

Circumference

Front

The space contained inside of a circle is called the...

Back

Area

Front

If a circle has a radius of 10 ft, what is the diameter?

Back

The diameter is 20 ft.

Tags

CCSS.7.G.B.4

Front

The distance across the circle through the center is called the...

Back

Diameter

Front

If a circle has a diameter of 10 ft, what is the radius?

Back

The radius is 5 ft.

Tags

CCSS.7.G.B.4

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2 × π × radius

Tags

CCSS.7.G.B.4

Front

What is the formula for the area of a circle?

Back

Area = π × radius²

Tags

CCSS.7.G.B.4

Front

If the radius of a circle is doubled, what happens to the area?

Back

The area becomes four times larger.

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 × radius

Tags

CCSS.7.G.B.4

Front

What is π (pi) approximately equal to?

Back

π is approximately equal to 3.14.

Tags

CCSS.HSG.GMD.A.1