Review: Area and Circumference

Front

Find the area: A= πr²

Back

113.1

Tags

CCSS.7.G.B.4

Front

A circular railroad-crossing sign has a diameter of 30 inches. What is the area of the sign in square inches?

Back

706.5 cm²

Tags

CCSS.7.G.B.4

Front

Jennifer painted a tabletop that is shaped like a circle. The circumference of the tabletop is 6π feet. What is the area of the tabletop in square feet?

Back

28.26 ft²

Tags

CCSS.7.G.B.4

Front

Landon used a semicircle, a rectangle, and a right triangle to form a figure. What is the best estimate of the area of the figure in square centimeters? Options: 54 cm², 44 cm², 26 cm², 38 cm²

Back

38 cm²

Front

The angle measures of a triangle are shown in the diagram. What is the value of x? Options: 14.5, 13.7, 17.8, 55.3

Back

14.5

Tags

CCSS.8.G.A.5

Front

What is the area of the shaded area shown, Mr. Bailey's lawn? Options: 13,600 ft² , 18,400 ft² , 16,000 ft² , 2,400 ft²

Back

13,600 ft²

Front

If my circumference is 37.68cm, what is my diameter?

Back

12cm

Tags

CCSS.7.G.B.4

Front

A line that goes from one end of the circle to the other and crosses the center point.

Back

diameter

Front

What is the formula for area of a circle?

Back

A = π×r²

Tags

CCSS.7.G.B.4

Front

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?

Back

c = 15π

Tags

CCSS.7.G.B.4