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The sides of a rectangle are in the ratio 4:3 and its area is 972sq.
Question 1:
The sides of a rectangle are in the ratio 4:3 and its area is 972sq.m
find the perimeter of the rectangle?
A.
120m
B.
122m
C.
124m
D.
126m
Feedback
let 4x and 3x be sides of the rectangle
We know that area of rectangle = l×b
4x × 3x = 972
12x2 = 972
X2 = 81
X = 9
Therefore, length = 4x = 4×9 = 36m
Breadth = 3x = 3×9 = 27m
Therefore, perimeter = 2 (l+b) = 2(36+27) = 126m
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