Circumference vs Area

What is the circumference of the circle?

• 25.12 in.

• 12.56 in.

• 50.24 in.

Tags

CCSS.7.G.B.4

Find the area of the circle below.

• 100 cm²

• 225 cm²

• 9 cm²

• 28.26 cm²

Tags

CCSS.7.G.B.4

A circle with an area of 13π in² is centered at point C. What is the circumference of this circle?

Tags

CCSS.7.G.B.4

Select all true statements.

• π is the circumference of a circle of diameter 1.
  

• π is the constant of proportionality relating the diameter of a circle to its circumference.

• π is the constant of proportionality relating the radius of a circle to its area.
  

Tags

CCSS.HSG.GMD.A.1

Determine the approximate circumference of a circle that has an area of 350.68 cm².

• 66.38 cm

• 33.19 cm

• 21.14 cm

• 10.57 cm

Tags

CCSS.7.G.B.4

Find the circumference of each circle when given the area.
area = 64π mi²

• C =  32 mi

• C = 42.5 mi

• C = 50.3 mi

• C = 64  mi

Tags

CCSS.7.G.B.4

If the area of a circle measures 16π cm2, what is the circumference of the circle in terms of π?

• 4π cm

• 8π cm

• 24π cm

• 32π cm

Tags

CCSS.7.G.B.4

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

Tags

CCSS.7.G.B.4

If the circumference of a circle is halved, then the area of the old circle is multiplied by ______

Tags

CCSS.7.G.B.4

If the area of a circle is 113.1 in² , then what is the circumference ?

Round your answer to the nearest hundredth.

Tags

CCSS.7.G.B.4