Area of Circles, Sectors

A cathedral window is built in the shape of a semicircle. If the window is to contain three stained glass sections of EQUAL SIZE, what is the area of one section of the semicircle? Round to the nearest tenth.

• 3.3 ft²

• 4.5 ft²

• 6.3 ft²

• 7.1 ft²

Tags

CCSS.7.G.B.4

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?

Tags

CCSS.HSG.C.B.5

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

Tags

CCSS.7.G.B.4

What is the area of this circle in terms of pi?

• 4π

• 8π

• 16π

• π

Tags

CCSS.7.G.B.4

What is the area of this circle? Leave your answer in terms of pi.

• 25π m²

• 10π m²

• π m²

• 5π m²

Tags

CCSS.7.G.B.4

What is the area of this circle? Round your answer to the nearest tenth.

(a)  

Tags

CCSS.7.G.B.4

Find the area of the shaded sector of circle O. The radius is 6 inches and the central angle is 100°. Express answer as an exact value in terms of pi.

• 5π/3 in²

• 10π/3 in²

• 10π in²

• 40π in²

Tags

CCSS.HSG.C.B.5

• 8π/3  square units

• 2π/3  square units

• 32π/3 square units

• 4π/3 square units

Tags

CCSS.HSG.C.B.5

If Pacman's mouth, when open, is 72° and the radius of his mouth is 8mm, what is the exact area of the rest of Pacman's body? Round your answer to the nearest tenth.

(a)  

Tags

CCSS.HSG.C.B.5

What is/are the formula(s) to find the area of a circle?

• πr²

• 2πr

• √π

Tags

CCSS.7.G.B.4