1-7 Perimeter, Circumference, and Area

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Perimeter, Circumference, and Area

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Presentation transcript:

1-7 Perimeter, Circumference, and Area P I M E T E R

SQUARE WITH SIDE LENGHTS S Perimeter 𝑷 = 𝟒𝒔 Area 𝑨 = 𝒔 𝟐 SQUARE WITH SIDE LENGHTS S s s s

b h h b Perimeter 𝑷 = 𝟐𝒃 + 𝟐𝒉 Area 𝑨 = 𝒃 ● 𝒉 Rectangle with base b and height h b

r d Circle with radius r and diameter d Circumference 𝑪 = 𝝅𝒅 𝒐𝒓 𝑪=𝟐𝝅𝒓 Area 𝑨 = 𝝅 𝒓 𝟐

Find the area and perimeter. 1. 𝑏=10, ℎ=4 2. 𝑏=5, ℎ=12 Examples Find the area and perimeter. 1. 𝑏=10, ℎ=4 2. 𝑏=5, ℎ=12 3. 𝑏=25, ℎ=32

3. Your pool is 15 ft wide and 20 ft long with a 3 ft wide deck surrounding it. You want to put a fence around the deck. How much fence will you need?

4. Find the area and circumference 15 mm

5. Find the perimeter of ABC

6. You are designing a rectangular banner for the front of the school 6. You are designing a rectangular banner for the front of the school. The banner will be 4 feet tall and 7 yards long. How much material do you need? HASD

7. The diameter of a circle is 10 in. Find the area in terms of 𝝅

8. Find the area

CHALLENGE!! Find the area!

Practice! Pg 55-56: 1-17, 20-25, and 27-37