Bell Ringer • Simply each absolute value 1. 4 − 8 2. 10 − (−5) 3. −2 − 6 1-7 Perimeter, Circumference, and Area T E R P E R I M E T P E R I M E T E R P IE MR EI TME ER T E R AREA E R P E R I M E T E R CIRCUMFERENCE s s Perimeter P = 4s Area A = 𝒔𝟐 SQUARE WITH SIDE LENGHTS S s s b Perimeter P = 2b + 2h h Area A = b ● h Rectangle with base b and height h b h Circle with radius r and diameter d d r Circumference C = 𝝅𝒅 𝒐𝒓 𝑪 = 𝟐𝝅𝒓 Area A = 𝝅𝒓𝟐 Examples! 1. 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? 2. Find the circumference 12 in. 3. Find the perimeter of A ABC C A B 4. You are designing a rectangular banner for the front of the school. The banner will be 4 ft wide and 7 yards high. How much material do you need? 5. The diameter of a circle is 10 in. Find the area in terms of 𝝅 10 in 6. Find the area 6 cm 2 cm CHALLENGE!! Find the area! Practice! Pg 55- 1-5, 8-11, 16-17, 20-25, and 27-32