Question

A hedge needs to be planted around a rectangular lawn 18m long abd 12m wide. if 3 shrubs can be planted to grow a metre of hedge, how many shrubs will be needed in all ?

Answer 1

for rectangular lawn
l=18m
b=12m
first we will find the perimeter of the lawn hich is :-. = 2(l+b)
= 2(18+12)
= 2*30
= 60m
now,shrubs planted in 1 m = 3
shrubs planted in 60m = 60*3=180
so, answer is 180 shrubs

Answer 2

Answer:

180 shrubs

Step-by-step explanation:

Perimeter of the rectangular lawn=

2 (l+b)

=2 (18 + 12)

=2 x 30

=60

Shrubs needed in all-

60 x 3

=180

Ans: 180 shrubs are needed in all.