Perimeter LESSON 19 POWER UP CPAGE 128. Perimeter The distance around the outside Find any missing sides Add all the sides together 6 cm 5 cm.

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Presentation transcript:

Perimeter LESSON 19 POWER UP CPAGE 128

Perimeter The distance around the outside Find any missing sides Add all the sides together 6 cm 5 cm

Perimeter of Regular Polygons Add all the sides or P = side length × number of sides 4 in

Perimeter Formulas W L S

Perimeter of Irregular Polygons Find the length of the missing sides Add all sides together 3 cm 9 cm 8 cm a b 5 cm

Perimeter of Irregular Polygons 8 cm 3 cm 9 cm 5 cm 4 cm 5 cm 9 cm 8 cm

Find the Sides of a Regular Polygon Side length = perimeter ÷ number of sides The perimeter of a pentagon is 45 yds. How long is each side? The perimeter of a square is 36 ft. How long is each side?