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12-04-2018
Mathematics

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The sides of a rectangle are in ratio 3:5 and the rectangle's area is 135 sq cm. find the dimensions of the rectangle.

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Аноним Аноним

12-04-2018

Ratio :
Width : Length
3 : 5

Let the factor be x

(3x)(5x) = 15x²

15x² = 135
x² = 9
x = √9
x = 3

Width = 3 x 3 = 9 cm
Length = 3 x5 = 15 cm

Answer: The dimension is 9cm by 15 cm

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