The length and breadth of a rectangle are in the ratio 8:5 its perimeter is 260 cm meter . Find its area
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Perimeter = 2(l+b)
let the length of the rectangle be 8x centimeters and the breadth be 5x cm.
260 = 2( 8x + 5x)
= 130 = 8x + 5x
= 130 = 13x
= x = 10
Area = l×b
Area = 8x × 5x
= 8*10 * 5 * 10
= 80*50
= 4000 cm sq.
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