Question

the length of a rectangle is three times its breadth if the perimeter is 84 cm find its length of the rectangle​

Answer 1

Answer:

Let the length be x & breadth be 3x

A/Q,

Perimeter of Rectangle = 2(l+b)

84 cm = 2(x+3x)

84 cm = 2×4x

84 cm = 8x

84 ÷ 8 = x

10.5 =x

Answer 2

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