Area of Plane Figures and Sector of Circle

Find the area of the shaded region. Use 3.14 for π. Round to the nearest tenth.

• 31.4 m ²

• 28.3 m²

• 125.6 m²

• 282.6 m²

what is the area of this semicircle with a diameter of 8 cm? Give answer in terms of π.

Find the area of the shaded sector of the circle. Leave answer in terms of π

• 5.83π

• 43.75π

• 68.75π

• 4.58π

If Pacman's mouth, when open, is 60° and the radius of his mouth is 12mm, what is the EXACT area of the rest of his body? Give answer in terms of π

You stop for lunch at a local pizza shop where each pizza is cut into 8 slices. Would you get more pizza with one slice from a 16 inch diameter pizza or two slices from a 10 inch diameter pizza?

• One Slice

• Two Slices

A pizza has a diameter of 14 inches and is cut into 8 congruent slices. What is the area of one slice to the nearest hundredth? 

Chelsea is baking pies for a fundraiser at her school. She divides each 9-inch diameter pie into 6 equal slices. What is the area , in square inches, for each slice of pie?

The number of square units needed to cover a given surface. (a)  

• volume

• area

• perimeter

• surface area

The point inside a circle that is the same distance from all points on the circle. (a)  

• arc

• center (of a circle)

• sector

• circumference

A section enclosed by two radii and the arc joining their endpoints. (a)  

• central angle

• circumference

• chord

• sector