Question

barbed wire is to be put around a rectangular flower bed measuring 20m by 12m. if poles are erected after everyone so that the barbed wire can be put around it how many poles will be needed in all
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Answer 1

Answer: Length of flower bed=20m

breath of the flower bed=12m

perimeter of the flower bed=2(20+12)=64m

poles are to be placed after everyone metre,

number of poles required on the length

side of the bad for 20m=21

number of poles required on the breadth side of the the bad for 12m=11

( seal corners have already been covered during covering the length of the bed)

status number of poles are required to put around the flower bed=2×21+2×11=64

Step-by-step explanation:

Hope it will help you.