Question

a rectangular lawn whose length is 20 feet, covers an area of 300 square feet find the length of fence required to surround it ​

Answer 1

Answer: 70 feet

Step-by-step explanation:

length=20 feet

Area=l×b

300=20×b

b=15 feet

Perimeter=2(l+b)

=2(20+15)

=2(35)

=70 feet

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Answer 2

length =20
area=300
bredth=?

area =l×b
20×b = 300
b= 300÷20
b=15

perimeter =2 (l+b)
2 (20+15)=perimeter
2 (35)
70
perimeter of a recangular lawn is 70