Question

A farmer has a rectangular field of length and breadth 240 m and 180 m respectively. He wants to fence it with 3 rounds of rope. What is the total length of rope he must use?​
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Answer 1

Step-by-step explanation:

GIVEN:-

THE LENGTH OF RECTANGULAR FIELD = 240m

THE BREADTH OF RECTANGULAR FIELD = 180m

TO FIND:-

THE TOTAL LENGTH OF ROPE THAT HE USED.

SOLUTION:-

PERIMETER OF RECTANGLE = 2(L + B)

= 2( 240 + 180)

= 2× 420

= 840m

LENGTH OF ROPE REQUIRED = 3 × PERIMETER OF FIELD

= 3 × 840m

= 2520m

Therefore 2520m is the total length

of the rope used.

Answer 2

$\large{\underbrace{\underline{\mathrm{Understanding\:the\:concept:}}}}$

( In this question ), The farmer has it's own rectangular field with length 240 and breadth 180m. He wants to fence its field with 3 rounds and we have to find the length of the rope used here.

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$\huge\bold{Let's\:solve}$

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The farmer has to cover three times the perimeter of that field. Therefore, the total length of rope required is thrice its perimeter.

$\large \rm { Perimeter\:of\:the\:field\:=\:2×(L+B)}$

$\large \rm { =\:2×(240m\:+180m) }$

$\large \rm { =\:2×420m\:=840m }$

Total length of rope required = 3 × 840m = 2520m

　　　 $\large{\underline{\boxed{\mathfrak{∴The\:answer\:is\:2520m}}}}$