Circumference of a Circle

Front

What is the diameter of a circle?

Back

The distance from an edge of a circle to another edge through the center.

Front

What is the formula for the circumference of a circle?

Back

Circumference = π x diameter.

Tags

CCSS.7.G.B.4

Front

What does the symbol π represent?

Back

Pi, a mathematical constant approximately equal to 3.14.

Tags

CCSS.HSG.GMD.A.1

Front

If a circle has a diameter of 10 inches, what is its circumference?

Back

31.4 inches (Circumference = π x 10).

Tags

CCSS.7.G.B.4

Front

What is the radius of a circle?

Back

The distance from the center of the circle to an edge.

Front

How do you find the diameter if you know the radius?

Back

Diameter = 2 x radius.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a diameter of 17 inches?

Back

53.38 inches (Circumference = π x 17).

Tags

CCSS.7.G.B.4

Front

If the circumference of a circle is 18.84, what is the diameter?

Back

Diameter = 6 (Circumference = π x diameter).

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the length of the radius.

Tags

CCSS.7.G.B.4

Front

What is the approximate value of π?

Back

Approximately 3.14.

Tags

CCSS.HSG.GMD.A.1