Circles and Sectors Word Problems

A circle has a diameter of 26 units. Keisha said the area of the circle is 2,123.27 square units( rounded to the nearest hundredth). Find the correct area of the circle.

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)  

If you are given the diameter, how can you calculate the radius?

• Multiply the diameter by 2

• Subtract 2 from the diameter

• Add 2 to the diameter

• Divide the diameter by 2

A _____ is half of a circle.

• circumference

• pi

• semicircle

• composite figure

Steven purchases a bowl. The diameter of the

bowl is 14 cm. What is the circumference of the

bowl? Round to the nearest hundredth. Don't forget to label.

Daniel wants to buy cookies for his friend. The

radius of a cookie is 5 inches. What is the cookie’s

circumference? Round to the nearest hundredth. Don't forget to label.

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.

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

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)

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