Area Radius Diameter Circumference

What does C represent in the formula: C = π·d

• Pi

• Circumference

• Diameter

• Area

Tags

CCSS.7.G.B.4

If the diameter of a circle is 50 yards, the radius is _____

• 100 yards

• 25 yards

• 150 yards

• 15 yards

Tags

CCSS.7.G.B.4

If the radius of a circle is 12.5 meters, the diameter is ____

• 6.25 meters

• 125 meters

• 25 meters

• 50 meters

Tags

CCSS.7.G.B.4

Meg swam from one side of her circular pool to the other side going through the center.  If Meg swam 8 feet, what is the approximate circumference of Meg's pool?

• 16 feet

• 25.12 feet

• 251.2 feet

• 4 feet

Tags

CCSS.7.G.B.4

A remodeling project calls for sanding a chair with a disk sander. The sanding disk used on the sander has a radius of 4.5 inches. Find the area of the disk. Use 3.14 for π

•  about 64.79 in2

•  about 55.19 in2

•  about 63.59 in2

•  about 53.79 in2

Tags

CCSS.7.G.B.4

What is the definition of a circumference of a circle?

• The distance from the center of a circle to the outer edge.

• The total distance around a circle.

• The total area inside of the circle.

• Two squares squeezed together to make a circle.

Tags

CCSS.7.G.B.4

What is the area of a circle if the radius is 20?

• 1256

• 1299

• 3454

• 3457

Tags

CCSS.7.G.B.4

What is the definition of the radius of a circle?

• The distance from point a to point b.

• The distance around the circle.

• The distance from the center of a circle to the circumference.

• The distance from one side of a circle to the other side through the center.

The distance from one side of a circle passing through the center to the other side of the circle is the

Tags

CCSS.HSG.C.A.2

Write the formula for the circumference of a circle.

Tags

CCSS.7.G.B.4