Circumference of a Circle

Front

What is the formula to calculate the circumference of a circle?

Back

Circumference = π × diameter.

Tags

CCSS.7.G.B.4

Front

What is the value of π (pi) approximately?

Back

Approximately 3.14.

Tags

CCSS.HSG.GMD.A.1

Front

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

Back

31.40 inches.

Tags

CCSS.7.G.B.4

Front

What is the diameter of a circle?

Back

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

Front

How do you find the circumference if you only know the radius?

Back

Circumference = 2 × π × radius.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a diameter of 3.5 feet?

Back

10.99 feet.

Tags

CCSS.7.G.B.4

Front

What does the term 'circumference' refer to?

Back

The measurement around the circle.

Front

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

Back

Diameter = Circumference / π = 18.84 / 3.14 = 6 inches.

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

Radius = Diameter / 2.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a diameter of 6 inches?

Back

18.84 inches.

Tags

CCSS.7.G.B.4