Question

The length and breadth of a rectangle
are in the ratio 9:5. If its area is 720
m2. find its perimeter.
(a) 112 metre
(b) 115 metre
(c) 110 metre (d) 118 metre​

Answer 1

Answer:

Area=l.b

720 = 9x.5x

720=45 $x^{2}$

x=4

length=9.4=36

breath =5.4=20

perimeter = 2(l+b)

=2(36+20)

112 m

Step-by-step explanation: