Calculating Area and Circumference of a Circle

What is the term used for the line from the center of a circle to its edge?

• Diameter

• Circumference

• Area

• Radius

If a circle has a diameter of 8 cm, what is its circumference?

• 25.12 cm

• 50.24 cm

• 15.7 cm

• 12.56 cm

Tags

CCSS.7.G.B.4

If the diameter of a circle is 14 cm, what is its circumference?

• 44 cm

• 43.96 cm

• 22 cm

• 88 cm

Tags

CCSS.7.G.B.4

How do you calculate the circumference of a circle using its radius?

• Radius times diameter

• Pi times radius squared

• 2 times Pi times radius

• Pi times diameter

Tags

CCSS.7.G.B.4

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

• 20.9 m

• 6.28 m

• 12.56 m

• 18.84 m

Tags

CCSS.7.G.B.4

What is the total perimeter of a shape consisting of a rectangle and two semicircles with a radius of 3 m each?

• 18.84 m

• 24 m

• 36.84 m

• 42.84 m

Tags

CCSS.3.MD.D.8

What is the perimeter of a composite shape that includes a rectangle with a length of 12 m and two semicircles with a radius of 3 m each?

• 42.84 m

• 36.84 m

• 18.84 m

• 24 m

Tags

CCSS.3.MD.D.8

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

• Pi times radius

• 2 times Pi times radius

• Pi times radius squared

• Pi times diameter

Tags

CCSS.7.G.B.4

What is the area of a circle with a radius of 7 cm?

• 153.94 cm^2

• 154.12 cm^2

• 153.16 cm^2

• 150 cm^2

Tags

CCSS.7.G.B.4

How do you find the area of a composite shape consisting of a rectangle and a full circle?

• Subtract the area of the circle from the area of the rectangle

• Add the area of the rectangle to the area of the circle

• Multiply the area of the rectangle by the area of the circle

• Add the area of the rectangle to the diameter of the circle

Tags

CCSS.3.MD.C.7D