Question

Choose the correct answers.
1. The area of a rectangular field is 4500 sq.m. If its length and breadth are in the
hand breadth are in the 9:5, then its perimeter is
(h) 90 m
(c) 150 m
(d) 280 m​

Answer 1

Answer:

Let length be 9x and breath be 5x

Area of rectangle is =l*b

4500 =9x*5x

500 =5x*x

100 =x²

10 =x

So,

Length= 9x= 9(10)=90m

Breath= 5x=5(10) =50m

So the perimeter of rectangle is= 2(l+b)

=2(90+50)

=2(140)

=280m

Amswer is 280 M

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