The base and altitude of a parallelogram are 18cm and 14cm respectively. If the area is 3 times the perimeter, find the width of the parallelogram.?
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let width be x
Area = base × altitude = 18×14 = 216
Area = 3*Perimeter
Therefore, 216 = 3*2(18+X)
216 = 6(18+X)
36 = 18+X
Therefore X = 18 cm
Width of parallelogram is 18 cm
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