Area Perimeter and Circles

A _____ is half of a circle.

• circumference

• pi

• semicircle

• composite figure

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the PERIMETER of her welcome mat in feet? Round to the nearest hundredth. Don't forget to label.

Tags

CCSS.7.G.B.4

If you have been given diameter, how do you find radius?

• Radius times radius

• a.  Radius plus radius

• Diameter divided by 2

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 6,079.04 ft

• 138.16 ft

• 69.08 ft

• 1,519.76 ft

Tags

CCSS.7.G.B.4

What is the circumference of this circle?

• 78.5 m

• 31.4 m

• 15.7 m

• 3.14 m

Tags

CCSS.7.G.B.4

Daniel has a circular rug that has a diameter of 16 inches. How much space does the rug take up?

• 200.96 in

• 50.24 in

• 803.84 in

• 25.12 in

Tags

CCSS.7.G.B.4

Find the perimeter.

• 2.4 ft

• 6.4 ft

• 5.76 ft

• 1.2 ft

Tags

CCSS.4.MD.A.3

Rob is measuring his chocolate bar. It's length is 4 inches and its width is 6 inches. What is the perimeter?

• 12 in

• 24 in

• 20 in

• 576 in

Tags

CCSS.4.MD.A.3

What is the area of this shape?

• 160 sq ft

• 26 sq ft

• 80 sq ft

• 52 sq ft

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

What is the perimeter of this triangle?

• 20

• 10

• 160

• 17

Tags

CCSS.3.MD.D.8