Question

The breadth of a rectangular field is twice its length. If the area of the field is 1058 m square,find the cost of fencing it at ₹35 per m.

Answer 1

Answer:

the cost of fencing is 4830

hope it helps

Answer 2

The cost of fencing is rs 4830

Step-by-step explanation:

Consider length of the rectangular field = l meters,

∵ Breadth is twice its length.

So, width = 2l,

Thus, area = length × width

= l × 2l

= 2l²

According to the question,

$2l^2 = 1058$

$l^2 =\frac{1058}{2}$

$l^2 = 529$

$\implies l =\sqrt{529}=23$  ( Negative value will not consider because side can not be negative )

That is,breadth = 2(23) = 46,

Hence, perimeter of the field = 2(length + breadth) = 2(23+46) = 2(69) = 138 meters,

If cost of fencing for 1 meter = 35 rupees,

Then the cost of fencing 138 meters = 138 × 35 = 4830 rupees.

#Learn more :

Find the cost of fencing garden 15 cm and 7m wide. If cost of fencing is 25 per square m?

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