8-6 Perimeter The perimeter of a figure is the distance around it. To find the perimeter you can add the lengths of the sides.

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Presentation transcript:

8-6 Perimeter The perimeter of a figure is the distance around it. To find the perimeter you can add the lengths of the sides.

8-6 Perimeter Find the perimeter of the figure.

8-6 Perimeter Check It Out: Example 1A Find the perimeter of the figure. 4.5 cm 4.2 cm

8-6 Perimeter Check It Out: Example 1B Find the perimeter of the figure. 5.5 ft 3.1 ft 4.3 ft

8-6 Perimeter

8-6 Perimeter Find the perimeter P of the rectangle. 12 cm 3 cm

8-6 Perimeter Find the perimeter P of each rectangle. m __ m

8-6 Perimeter Find the perimeter P of each rectangle. 3.4 in.

8-6 Perimeter Find the perimeter P of each rectangle. P = 2l + 2w P = 2( ) + 2( ) ‏ P = yd __ yd 4 __ = 16 yd

8-6 Perimeter What is the length of side a if the perimeter equals 1,471 mm? Find each unknown measure.

8-6 Perimeter Find each unknown measure. What is the perimeter of the polygon?

8-6 Perimeter The width of a rectangle is 19 cm. What is the perimeter of the rectangle if the length is 4 times the width? 4w4w 19 cm

8-6 Perimeter Find each unknown measure. What is the length of side b if the perimeter equals 82 cm? b 26 cm 14 cm 22 cm

8-6 Perimeter Lesson Quiz: Part II 4. What is the perimeter of a rectangle with length 22 cm and width 8 cm? 5. The width of a rectangle is 12 in. What is the perimeter of the rectangle if the length is 7 in. longer than the width?

8-6 Perimeter 1. Identify the perimeter. A. B. C. D. Lesson Quiz for Student Response Systems

8-6 Perimeter 3. What is the perimeter of a polygon with side lengths 14 cm, 16 cm, 19 cm, 31 cm, and 25 cm? A. 115 cm B. 105 cm C. 95 cm D. 85 cm Lesson Quiz for Student Response Systems

8-6 Perimeter 5. The width of a rectangle is 14 in. What is the perimeter of the rectangle if the length is 9 in. longer than the width? A. 74 in. B. 75 in. C. 76 in. D. 77 in. Lesson Quiz for Student Response Systems