Circumference

Front

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

Back

Circumference = 2 × π × radius or Circumference = π × diameter.

Tags

CCSS.7.G.B.4

Front

If the radius of a circle is 12.5 mm, what is its circumference?

Back

78.5 mm.

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

If the diameter of a circle is 19 inches, what is the radius?

Back

9.5 inches.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a radius of 27 yards?

Back

169.56 yards.

Tags

CCSS.7.G.B.4

Front

How do you convert radius to diameter?

Back

Multiply the radius by 2.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a radius of 10 ft?

Back

62.8 ft.

Tags

CCSS.7.G.B.4

Front

If a circular garden has a circumference of 392.5 ft, what is its radius?

Back

62.5 ft.

Tags

CCSS.7.G.B.4

Front

What is π (pi) approximately equal to?

Back

3.14.

Tags

CCSS.HSG.GMD.A.1

Front

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

Back

Use the formula Circumference = π × diameter.

Tags

CCSS.7.G.B.4