Question

The total length of all sides of a rectangular park is 72 metres. If its length is 20 metres then its area is: 1) 140 2) 160 m) 320 m' 4} 400​

Answer 1

Answer:

160

Step-by-step explanation:

first find its breath and after that multiply it by 20

Answer 2

Answer:

320 m

Step-by-step explanation:

total length of all sides =72m

perimeter = 72 m

2(l+b) =72m

l+b = 72/2 m

20 + b = 36 m

b = 36-20 m

b = 16 m

area of rectangle = l*b

= 20*16

= 320 m