208 Chapter 3 Fractions and Mixed Numbers: Addition and Subtraction 59. A stop sign is in the shape of an 8-sided polygon 1212 in which each of the sides is in. Find the perimeter. 1 2 12 in. 60. The shutters on the front of the house need to be painted. Determine the area of the four shutters. 61. Matt needs to replace gutters on his townhouse. If the front and back of the townhouse are each 12 20 long and the side of the house is ft 3513 ft long, how much gutter should he buy to go around the three sides of the house? 62. Find the area of the triangular portion of the roof. 63. The cost of a new roof depends on the area of the roof. Find the area of the roof of the house in the figure. 64. Find the area of the calculator screen. 65. The Krajewskis want to improve the backyard by fertilizing the grass and putting up a decorative fence. To know how much fertilizer to use, they must know the area of the yard. (See Example 6.) a. Using the figure, determine the area of the yard. b. How many meters of fencing will they need? 66. A homeowner plans to put an addition onto her house. The dimensions of the front face of the addition are shown in the figure. a. If the homeowner wants to paint the front face of the house, how many square feet of paint will be needed? 5 6 1 ft 2 3 3 ft b. If the homeowner strings lights along the slanted edge and left edge, how long a string of lights will be needed? Expanding Your Skills 67. Richard wants to paint his garage. Determine the area that needs to be painted. (He will paint the garage door, front, back, and sides of the garage, but not the roof.) 1 28 ft 50 ft 1 4 14 ft 7 8 35 ft 7 103 cm 1 5 6 cm 3 10 14 m 1 13 m 5 16 m 1 2 5 m 1 212 ft 10 ft 1 27 ft 3 49 ft 10 m 1 2 6 m 1 2 1 m 1 3 4 m
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