5. The perimeter of a rectangle is 129 m. If its breadth is 25 m, find its area.
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Answer: 987.5 m^2
Step-by-step explanation:
Given,
perimeter of rectangle = 2( L+B)= 129m
B= 25m
Area = LxB =?
Soln,
Putting value in perimeter formula,
2(L+25) = 129
2L +50=129
2L= 129-50
2L = 79
L= 39.5m
Area = LxB
= 39.5 x 25
= 987.5 m^2
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