Name: ______________________________ Period: Goal What is the perimeter of this triangle? Calculate the perimeter of ΔXYZ. 14 45 o Regular hexagon.

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Name: __________________________________ Period: ____ Goal What is the perimeter of this triangle? Calculate the perimeter of ΔXYZ o Regular hexagon ABCDEF is cut into 6 equilateral triangles. If MD = 8, what is the perimeter of ABCDEF? A B C D E F M Give the perimeter of the polygon shown. Perimeter: How to find it: Real Life Examples: Z X Y 19 m

End of independent practice: How many people are getting this right? Which seems more reasonable? Mrs. Robinson has a triangular shaped garden. She wants to plant a row of bushes around the perimeter of the garden. The bushes need to be planted 3 ft. apart. How many bushes will she need? ____ bushes are needed ADCB ~ EHGF. What is the perimeter of EHFG? The following figure is a regular octagon. Find the perimeter of each of these figures. The length of a rectangular pig pen is 3 times as long as the width. If the total perimeter of the pig pen is 48 feet. What are the dimensions of the pig pen? The perimeter of ABCD is 44 inches. What is the length of AB? A swimming pool has a length that is 10 yds. more than its width. If the total perimeter of the pool is 220 yds., what are the dimensions of the swimming pool?

x + 6 2x -1 x + 12x 2x A soccer field has a width that is 40 yds less than its length. If the perimeter of the field is 400 yds, what are the dimensions of the soccer field? Give the perimeter of this rectangle as an expression in terms of x. 40 ft 30 ft. garden Mr. Armadillo also has a garden. He wants to enclose his garden with a cactus every 2 ft. Each cactus costs $8.99. What will the cost of the cacti be? (3 step problem!) Calculate the perimeter of ΔABC.

Name: __________________________________ Period: ____ Goal HW65: Finding Perimeter 1. Serena wants to hang up Christmas lights around the ceiling of her bedroom. The dimensions of her room are 12 ft. by 14 ft. If there are 3 light bulbs in every foot of Christmas lights, how many light bulbs will she have in her room? 2. The length of a rectangular pig pen is 3 times as long as the width. If the total perimeter of the pig pen is 48 feet. What are the dimensions of the pig pen? 3. The perimeter of ABCD is 44 inches. What is the length of AB? 4. The following pentagon is regular and has a perimeter of 225. What is the value of x? 3x-3 5. A swimming pool has a length that is 10 yds. more than its width. If the total perimeter of the pool is 220 yds., what are the dimensions of the swimming pool?