the area of a rectangle is 16000cm2. If the ratio of its length to its breadth is 5 : 2, find the perimeter of the rectangle
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Answer: 560cm
Step-by-step explanation: Let the length and breadth be 5x and 2x respectively
5x * 2x = 16000
10x²= 16000
X²= 1600
X= ±40
X=40 (as it can't be negative)
Length = 5x= 200 cm
Breadth= 2x=80cm
Perimeter= 2(200+80)
=560cm
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