A square field is 40m long. The perimeter of the square field is (in cm):

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14000cm

16000cm

12000cm

8000cm

answer is B.

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Detailed Solution

Concept-Use the formula

. Where,(

l

) is the length of the square. Finally, multiply the result by 100 to convert the result to centimeters.
In the question given,
The side of the square (

l

) is 40 m. The perimeter is always considered the sum of all sides of the object, whether it is a square, rectangle, or object of any shape. This is called the length required to create this figure. In this case, it is a square and the perimeter is the sum of all sides of the square.
Because all sides of the square are equal. The perimeter of a square can also be expressed as the product of the number of sides and the length of the sides. Think of the perimeter as P.
Mathematically, you can write:

…… (1)
Substituting equation (1) for

yields:

Therefore, the circumference is 160 m, but the final answer is in centimeters, so we needm to convert the answer to meters. We know,

Therefore, multiply 160m by a factor of 100. Therefore, the scope looks like this:

Therefore, the final answer is 16000 cm.
Hence, the answer is option 2.

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