Area of Semicircles Quarter Circles

Harper, David, and Nora are having a fun day at the park. They come across a beautiful semicircle-shaped pond. They wonder about the area of the pond. If the radius of the pond is 5 cm, can you help them calculate the area?

• 10 cm^2

• 78.5 cm^2

• 25 cm^2

• 39.25 cm^2

Tags

CCSS.7.G.B.4

Grace, Harper, and Avery are designing a magical castle for their school project. They decided to add a quarter circle window with a radius of 3 ft to their castle. Can you help them calculate the area of the window?

• 5.5 sq ft

• 12 sq ft

• 9 sq ft

• 7.07 sq ft

Tags

CCSS.HSG.C.B.5

The radius of a semicircle is 3 centimeters. What is the semicircle's area?

Tags

CCSS.7.G.B.4

Isla, Benjamin, and Harper are having a fun day at the park. They come across a giant semicircular sandbox with a diameter of 12 m. Can you help them calculate the area of the sandbox?

• 72π m^2

• 24π m^2

• 36π m^2

• 18π m^2

Tags

CCSS.7.G.B.4

Determine the area of the semicircle above.

Mathematical Equivalence

ON

Tags

CCSS.7.G.B.4

Find the area of the semicircle. Round you answer to the nearest hundredth.

• 19.63

• 9.8125

• 9.81

• 39.25

Tags

CCSS.7.G.B.4

what is the area of this semicircle ?

• 100.48cm²

• 80cm²

• 200.96cm²

• none of the above

Tags

CCSS.7.G.B.4

Find the area of the quarter circle. Round you answer to the nearest hundredth.

• 58.88

• 78.50

• 7.85

• 157.00

Tags

CCSS.7.G.B.4

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet? Leave in terms of π.

• 2π

• 8π

• 10π

• 4π

Tags

CCSS.7.G.B.4

Find the area of this quarter circle with a radius of 18 cm.

• 1017.36 cm

• 254.34 cm

• 26.52 cm

• 123.65 cm

Tags

CCSS.HSG.C.B.5