The length of a rectangular plot is twice its breadth. If its perimeter is 30 m, then what is its area
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Answer: 50m^2
Step-by-step explanation:
Let, b = x
Therefore, l = 2x (given)
Perimeter = 2(l+b) (=30m, given)
= 2(x+2x)
=2(3x)
=6x
Therefore, 6x = 30m
Therefore, x = 30/6
Therefore, x = 5m
Now,
b = x = 5m
l = 2x = 5×2
=10m
Area = l×b
= 10×5
=50m^2
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