Circles and Semicircles

Sadie has 38 inches of fringe to sew around a circular pillow. What is the diameter of the largest pillow she can use? Round to the nearest hundredth. Don't forget to label.

Find the circumference of a circle with a radius of 12.5 mm. Round to nearest hundredth. Don't forget to label.

Shring's dining room table is round and has a radius of 4.5 feet. What is the tabletop's area?

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area? Round to the nearest hundredth.

• 31.25 m²

• 29.55 m²

• 30.36 m²

• 28.27 m²

What is the area of a circle with the diameter of 10 cm ? Round to the nearest hundredth. Don't forget to label square cm or sq cm.

The diameter of the face-off circle on an ice-hockey rink is 30 feet. Find its area. (Don't forget to label - square feet, sq feet, sq ft or ft^2).

Jesse used rope to stake a circular region in which to plant a garden. The diameter of the region is 20 inches. What is the approximate area of half of the garden? Round to the nearest hundredth. Don't forget to label - square inches or sq in

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet? Round to the nearest hundredth. Please label like this - square in or sq in)

A glass stained window is shaped like a semicircle. The bottom edge of the window is 36 inches long. How much colored glass would you need to cover the stained window? Round to the nearest hundredth. (please label - sq inches or sq in)

Marisa purchases a pot for her father's garden. The diameter of the bottom of the pot is 18 cm. What is the area of the pot's bottom? Round to the nearest hundredth. Please label like this - square cm or sq cm)