Question

A farmer has a rectangular field of length and breadth 360 m and 120 m respectively. He wants to fence it with 4 rounds of rope. Find the cost of fencing at the rate of Rupees 15 per metre.​

Answer 1

Given:

The length of field=240m

The breadth of field=180m

ToFind:

Total length of rope

A.T.Q:

Using formula here

Perimeter=2(l+b):

Perimeter of field=length of rope

⟹2(240+180)

⟹2×420

⟹840m

Hence,

The total length of rope=840×3=2520m

Totallength=2520m:

ExtraFormulaforrectangle:

Area=l∗b:

Breadth = length Area

:Length = breadth Area:

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Answer 2

Answer:

Given:

The length of field=240m

The breadth of field=180m

ToFind:

Total length of rope

A.T.Q:

Using formula here

Perimeter=2(l+b):

Perimeter of field=length of rope

⟹2(240+180)

⟹2×420

⟹840m

Hence,

The total length of rope=840×3=2520m

Totallength=2520m:

ExtraFormulaforrectangle:

Area=l∗b:

Breadth = length Area

:Length = breadth Area:

Step-by-step explanation:

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