1. Bell-Ringer – 14 DAYS TILL TCAP! Show extended form and solve: A) 1 ⁴ B) 2⁵ Show simplified form and solve: C) 2 x 2 x 2 D) 5 x 5 x 5 x 5 E) 3 x 3 x 3 x 3 x 3

2. Bell-Ringer – 14 DAYS TILL TCAP! Show extended form and solve: A) 1 ⁴ 1 x 1 x 1 x 1 = 1 B) 2⁵ 2 x 2 x 2 x 2 x 2 = 32 Show simplified form and solve: C) 2 x 2 x 2 2 3 = 8 D) 5 x 5 x 5 x 5 5 4 = 625 E) 3 x 3 x 3 x 3 x 3 3 5 = 243

3. Perimeter of Polygons February 19 th, 2014

4. Objective I will solve real world and mathematical problems involving calculating the perimeters of polygons.

5. Define Perimeter –The distance around a geometric figure Explain how you find perimeter of a shape –Add up all the sides of the shape Write all the formulas you know for quadrilaterals. How is perimeter written in the answer? –In units (23 cm, 23 meters, 4 feet)

6. Perimeter of Quadrilaterals NameShapePerimeter SquareP=4b RectangleP=2b+2h =2(b+h) Parallelogram RhombusP=4b Trapezoids

7. Find the perimeter 20 cm

8. Find the Perimeter 24 cm

9. Find the Perimeter 68 feet

10. Fencing George is making a fence completely around his rectangular lot. The lot is 40 feet by 17 feet. How many feet of fencing should he get?

11. Tiles Suzanna has three tiles to fix the broken tiles in her floor. If she puts the three tiles together, what is the perimeter of the tiles? 12 inches 8in

12. Tiles Suzanna has three tiles to fix the broken tiles in her floor. If she puts the three tiles together vertically, what is the perimeter of the tiles? 15 inches 6in

13. Backwards I have a square that has a perimeter of 36 meters. What is the length of each side?

14. Let’s Double it I have a square. I double each side. What happens to the perimeter?

15. Paper Levi has a rectangular piece of paper like the one below. He cuts the paper in half with a vertical cut. What is the perimeter of the smaller piece? 24 in 16 in

16. Garden The Dunns have a 6 ft by 6 ft garden. This year, they plan to enlarge their garden by increasing the length by 6 ft and the width by 3 feet. What is the perimeter of their new garden?

17. CHALLENGE The length of a rectangle is 3 times the width. If the length is decreased by 4 m and the width is increased by 1 m the perimeter will be 66 m. What are the dimensions of the original rectangle?

18. CHALLENGE The length of a rectangle is 3 times the width, and the perimeter is 22. Find the dimensions of the rectangle.

19. The length of a rectangle is 3 times the width. L = 3W : If the length is decreased by 4 m and the width is increased by 1 m the perimeter will be 66 m. : 2(L-4) + 2(W+1) = 66 2L - 8 + 2W + 2 = 66 2L + 2W - 6 = 66 2L + 2W = 66 + 6 2L + 2W = 72 Simplify, divide by 2 L + W = 36 What are the dimensions of the original rectangle? Replace L with 3W 3W + W = 36 4W = 36 W = W = 9 m, original width then 3(9) = 27 m original length ; : Check this 2(23) + 2(10) = 46 + 20 = 66 nswer by richwmiller(7655) (Show Source): You can put this solution on YOUR website! l=3w p=2l+2wrichwmiller(7655)Show Sourceput this solution on YOUR website! 2*(l-4)+2*(w+1)=66 l=27 w=9

20. Gallery Walk 13 problems around the room. Move from one question to the next and find the perimeter for each. On your own Check your work when you are done.

21. DOL 1. A rectangle has a perimeter of 30 sq. inches and a length of 5 inches. Find the width. 2. Mr. Lao is planning to build a rectangular cattle pen that measures 50 feet by 75 feet. Find the total of fencing that he will need to purchase. 3. A hotel lobby measures 40 yards by 60 yards. Find the perimeter of the lobby’s floor.

22. DOL 1. A rectangle has a perimeter of 30 sq. inches and a length of 5 inches. Find the width. 10 inches 2. Mr. Lao is planning to build a rectangular cattle pen that measures 50 feet by 75 feet. Find the total of fencing that he will need to purchase. 250 feet 3. A hotel lobby measures 40 yards by 60 yards. Find the perimeter of the lobby’s floor. 200 yards