Question

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​

Answer 1

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