iamnails iamnails

25-03-2015
Mathematics

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a bulletin board is 3 ft high. the area is 15 sq ft. what is the perimeter?

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hjlucas hjlucas

26-03-2015

First step: Find how wide the bulletin board is
15 ft² ÷ 3 ft = 5 ft
Step the second: Use the perimeter formula P = 2l + 2w
P = 2(5) + 2(3)
P = 16 ft

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