Circumference

Find the circumference of the circle whose radius is 12cm.

(pi = 3.14)

• 76.36 cm

• 75.36 cm

• 74.36 cm

• 70.36 cm

Tags

CCSS.7.G.B.4

Find the circumference of the circle whose radius is 7.2 cm.

(pi = 3.14)

• 45.216 cm

• 22.608 cm

• 46.216 cm

• 23.608 cm

Tags

CCSS.7.G.B.4

Find the circumference of the circle whose radius is 21mm.

(pi = 22/7)

• 14.8. cm

• 13.6 cm

• 15.6 cm

• 13.2 cm

Tags

CCSS.7.G.B.4

Choose the correct formula(s) for circumference.

(C: circumference r: radius d: distance)

• C=pi x r

• C= pi x 2 x r

• C=pi x 2 x d

• C=pi x d

Tags

CCSS.7.G.B.4

Use pi=3.14, find the diameter of the circle which its circumference is 113.04 cm.

No need to input unit.

The diameter = ___ cm

Tags

CCSS.7.G.B.4

Suppose the diameter of a circle is 6cm. What is its circumference?

No need to input the unit.

(pi = 3.14)

Tags

CCSS.7.G.B.4

Suppose the radius of a circle is 8cm. What is its circumference?

No need to input unit.

(pi = 3.14)

Tags

CCSS.7.G.B.4

Suppose the diameter of a circle is 28cm. What is its circumference?

No need to input unit.

(pi = 22/7)

Tags

CCSS.7.G.B.4

Find the circumference of the circle whose radius is 5.5cm.

(pi = 3.14)

• 36.54 cm

• 17.27 cm

• 34.54 cm

• 18.27 cm

Tags

CCSS.7.G.B.4

Find the circumference of the circle whose diameter is 30cm.

(pi = 3.14)

• 188.4 cm

• 47.1 cm

• 94.2 cm

• 68.6 cm

Tags

CCSS.7.G.B.4