Area and Sector of a Circle

Today we'll start off reviewing the area of a circle first. Watch the quick 2min video to review.

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A

B

C

D

G.C.5

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Find the area of the circle with a radius of 4.5 meters. Round your answer to the nearest tenth.

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Find the radius of a circle with an area of 176.7 square feet.

Now let's talk about how to find the area of a sector. Think of this concept as if you would want to find the area of a delicious slice of vegan pizza. 🍽️

Watch this video that explains how you find the area of a sector.

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Case 1: Find the area of the red sector.

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Case 1: Find the area of the blue sector. Hint: find the measure of arcFGE before setting up your proportion.

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Case 1: Find the area of the sector

A

B

C

D

G.C.5

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Case 2: Find the area of the circle

Practice time!!!!!

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Find the area of a circle with a radius of 12 feet. Round to the nearest tenth.

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Find the area of the red sector.Round to the nearest tenth.

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Area and Sector of a Circle

Find the area of the circle with a radius of 4.5 meters. Round your answer to the nearest tenth.

Find the radius of a circle with an area of 176.7 square feet.

Case 1: Find the area of the red sector.

Case 1: Find the area of the blue sector. Hint: find the measure of arcFGE before setting up your proportion.

Case 1: Find the area of the sector

Case 2: Find the area of the circle

Find the area of a circle with a radius of 12 feet. Round to the nearest tenth.

Find the area of the red sector.Round to the nearest tenth.

Find the area of a circle.

Find the area of the circle with a radius of 4.5 meters. Round your answer to the nearest tenth.

Find the radius of a circle with an area of 176.7 square feet.

Case 1: Find the area of the red sector.

Case 1: Find the area of the blue sector. Hint: find the measure of arcFGE before setting up your proportion.

Case 1: Find the area of the sector

Case 2: Find the area of the circle

Find the area of a circle with a radius of 12 feet. Round to the nearest tenth.

Find the area of the red sector.Round to the nearest tenth.

Find the area of a circle.