Perimeter and Area of Semicircles

Find the area of this Semicircle with a diameter of 18 cm

• 254.34 cm

• 127.17 cm

• 56.52 cm

• 28.26 cm

Tags

CCSS.7.G.B.4

Find the perimeter of the semicircular. Round your answer to the nearest hundredth.

• 23.13 m

• 28.26 m

• 14.13 m

• 56.52 m

Tags

CCSS.3.MD.D.8

what is the area of this semicircle ?
d = 8 cm 

• 100.48 cm²

• 80 cm²

• 200.96 cm²

• 25.12 cm²

Tags

CCSS.7.G.B.4

A _____ is half of a circle.

• circumference

• pi

• semicircle

• composite figure

What is the distance around the semicircle? (Use 3.14 = π and round to the nearest tenths place)

• 18.5

• 11.3

• 20.3

• 22.6

Tags

CCSS.HSG.SRT.C.8

The Lees had a new concrete patio installed in the shape of a semicircle as shown. Mr. Lee wants to cover the patio with concrete sealer. What is the area he will need to cover with the sealer? Round to the nearest hundredth.

(a)  

Tags

CCSS.Math.Content.7.G.B.4

The diameter of the semicircle is 8 cm. Find the perimeter.

• 25.12 cm

• 33.12 cm

• 20.56 cm

• 100.48 cm

Tags

CCSS.7.G.B.4

The image shows two semicircles.  Find the area of the shaded region. Use 3.14 for π. 

• 42.39 sq. cm

• 113.04 sq. cm

• 169.56 sq. cm

• 83.98 sq. cm

Tags

CCSS.7.G.B.4

what is the area of this semicircle ? d = 8 cm

you have to do an extra step at the end

• 100.48 cm²

• 80 cm²

• 200.96 cm²

• 25.12 cm²

Tags

CCSS.7.G.B.4

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.

(a)  

Tags

CCSS.7.G.B.4