Question

The sides of a rectangular park are in the 4: 2.if it's are is 1728m2,find the cost of fencing it at Rs 2.50 per metre

Answer 1

Answer:

Step-by-step explanation:

L:B=4:2

L/B=4/2

2L=4B

L=2B

A=1728m²

A=L*B

2B*B=1728

2B²=1728

B²=864

B=28m

L=2*28

L=56m

P=2(L+B)

P=2*(56+28)

P=2*84

P=168m

Cost of fencing=2.50*168

=420 rupees