Question

A hedge boundary needs to be planted around a rectangular lawn 18 m long and 12 m wide. if 3 shrubs can be planted in one meter of hedge how many shrubs will be needed in all?​

Answer 1

Answer:

216 shrubs

Step-by-step explanation:

$18*12=216$

A shrub can be planted in 1 m^2 of lawn.

$\frac{216}{1} =216$(shrubs)

Answer 2

Answer:

20 shrubs

Step-by-step explanation:

First find the perimeter:

18+18+12+12=60

and divide by 3:

60/3= 20m