Circle Circumference

What is the formula to calculate the circumference of a circle with radius 'r'?

• 2 * π * r

• 2 * r

• r^2

• π * r

Tags

CCSS.7.G.B.4

If the radius of a circle is 5 cm, what is its circumference?

• 3.14159 cm

• 20 cm

• 15.70795 cm

• 31.4159 cm

Tags

CCSS.7.G.B.4

A circle has a radius of 8 meters. What is its circumference?

• 50.26544 meters

• 60.53088 meters

• 40.26544 meters

• 25.13272 meters

Tags

CCSS.7.G.B.4

Find the circumference of a circle with radius 12 cm.

• 24.56789 cm

• 50.79632 cm

• 37.69908 cm

• 75.39816 cm

Tags

CCSS.7.G.B.4

Calculate the circumference of a circle with radius 3.5 units.

• 22.5 units

• 20.5 units

• 21.99115 units

• 18.5 units

Tags

CCSS.7.G.B.4

If the radius of a circle is 10 inches, what is its circumference?

• 20π inches

• 25π inches

• 15π inches

• 30π inches

Tags

CCSS.7.G.B.4

A circle has a radius of 6.3 cm. Determine its circumference.

• 35.8 cm

• 42.16 cm

• 37.5 cm

• 39.62 cm

Tags

CCSS.7.G.B.4

What is the circumference of a circle with radius 15 meters?

• 45π meters

• 30π meters

• 225 meters

• 20π meters

Tags

CCSS.7.G.B.4

Find the circumference of a circle with radius 4.7 units.

• 29.5306 units

• 18.8 units

• 12.5 units

• 37.4 units

Tags

CCSS.7.G.B.4

If the radius of a circle is 9.2 cm, what is its circumference?

• 45.8 cm

• 57.85 cm

• 63.2 cm

• 36.4 cm

Tags

CCSS.7.G.B.4