Measuring Circles Test Review

A circle has a radius of 40 centimeters. Which of these is closest to its circumference?

• 126 centimeters

• 251 centimeters

• 1 600 centimeters

• 5 027 centimeters

Tags

CCSS.7.G.B.4

This circle has a radius of 6 units. Which answer is the most accurate for the area of the circle?

• 36π square units

• 113.1 square units

• 113.1π square units

• 6π square units

Tags

CCSS.7.G.B.4

Arjun measured the distance that a wheel traveled in different numbers of rotations. Select all of the true statements.

• The diameter of the wheel is about 31.5 inches.

• The circumference of the wheel is 31.5 inches.

• The diameter of the wheel is about 10 inches.

• The radius of the wheel is about 10 inches.

• The relationship in the table appears to be proportional.

Tags

CCSS.3.MD.D.8

Decide whether each quantity describes a circle's circumference or area. The amount of glass in a circular window.

• Circumference

• Area

Decide whether each quantity describes a circle's circumference or area. The number of tiles needed to go around a circular pool.

• Circumference

• Area

Decide whether each quantity describes a circle's circumference or area. The amount of paint needed to paint a circular table top.

• Circumference

• Area

Decide whether each quantity describes a circle's circumference or area. The distance a toy car travels around a circular track.

• Circumference

• Area

Which measurement is always proportional to the diameter of a circle?

• Circumference

• Area

• Both

• Neither

Tags

CCSS.7.G.B.4

This figure is made of part of a circle and a rectangle. What is the perimeter of the figure?

Tags

CCSS.3.MD.D.8

This figure is made of part of a circle and a rectangle. What is the area of the figure?