Circles in Terms of Pi

Front

What is the formula for the circumference of a circle?

Back

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

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

How do you calculate the area of a circle?

Back

Area = π × radius².

Tags

CCSS.7.G.B.4

Front

If a circle has a diameter of 10 cm, what is its radius?

Back

5 cm.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a radius of 3 cm?

Back

6π cm.

Tags

CCSS.7.G.B.4

Front

A circle has a circumference of 12π cm. What is its diameter?

Back

12 cm.

Tags

CCSS.7.G.B.4

Front

What is the area of a circle with a radius of 4 in?

Back

16π in².

Tags

CCSS.7.G.B.4

Front

If the area of a circle is 25π ft², what is its radius?

Back

5 ft.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a diameter of 8 inches?

Back

8π inches.

Tags

CCSS.7.G.B.4

Front

A circle has a radius of 6 cm. What is its area?

Back

36π cm².

Tags

CCSS.7.G.B.4