Length of a rectangle is three times its width. The perimeter of the r – InterviewSolution

1.

Length of a rectangle is three times its width. The perimeter of the rectangle is 40 cm . Find its length.5 cm10 cm15 cm20 cm

Answer»

Answer:

Step-by-step EXPLANATION:

LET the breath be x

length will be 3x

perimeter =40

40 = 2(3x + x)

40/2 = 4x

20 = 4x

x = 5

length = 5*3 = 15

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