Question

The sides of a rectangle are in the ratio 4:5 find its sides if the perimeter is 90 cm.

Answer 1

Let the breadth and length of rectangle be 4x and 5x respectively.

Perimeter of rectangle
=2(length + breadth)
=2(4x+5x)=90

so 9x=45
and x=45/9=5

so Length=5x =5×5=25 cm
Breadth=4x=4×5=20 cm

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