Area and Perimeter 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

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

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.

Find the area of the SEMICIRCLE.

• 116.8 m²

• 58.4 m²

• 467.4 m²

• 38.3 m²

• 63.4 m²

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

Find the area of the SEMICIRCLE.

• 153.86 cm²

• 76.93 cm²

• 38.465 cm²

• 307.72 cm²

• 615.44 cm²

Mrs. Wilson placed the welcome mat shown below on her front door step.

What is the PERIMETER of her welcome mat in inches?

Use 3.14. Round to the nearest hundredth.

_______ in. ( NO NEED TO LABEL)

Find the perimeter. The curve is a semicircle (half a circle).

• 31.4

• 62.8

• 51.4

• 58.3

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