the perimeter of a rectangle is 30 metres and the ratio of the length to the breadth is 7:3 find the area of rectangle
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9
Answer:
47.25
Step-by-step explanation:
perimeter of rectangle =30m
let length be 7x
and breadth be 3x
perimeter of rectangle =2 (l+b)
30=2 (7x+3x)
15=10x
x=1.5m
length =7x = 7×1.5=10.5m
breadth=3x=3×1.5=4.5m
area of rectangle=l×b
=10.5×4.5
=47.25 answer
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