Comment

 
the cost of ploughing in a square field is Rs 2450 @ Rs 2 per square meter find the length of the side of the square.
 
Answer

2A/100=2450 and A=s^2 so 

2s^2/100=2450 

s^2/50=2450 

s^2=122500 

s=350m
please someone explain this answer to me .what does the A in the answer means

Respuesta :

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The length of the side of the square is [tex]\boxed{35{\text{ meter}}}.[/tex]

Further Explanation:

The formula of area of square can be expressed as follows,

[tex]\boxed{Area = \left( s \right) \times \left( s\right)}[/tex]

The formula of perimeter of the rectangle can be expressed as follows,

[tex]\boxed{{\text{Perimeter}} = 4 \times s}[/tex]

Here, s represents the side of square.

Given:

The cost of plugging in a square field is Rs 2450.

The cost for plugging per square meter is Rs 2.

Explanation:

The total area that plugged can be obtained as follows,

[tex]\begin{aligned}{\text{Area}}&= \frac{{{\text{Cost of plugging}}}}{{{\text{cost of per square meter}}}}\\&= \frac{{2450}}{2}\\&= 1225\\\end{aligned}[/tex]

The length of the side of the square can be obtained as follows,

[tex]\begin{aligned}{\text{Area}}&= {\left( {\text{S}} \right)^2}\\1225&= {\left( {\text{S}} \right)^2}\\\sqrt {1225}  &= {\text{S}}\\35&= {\text{S}}\\\end{aligned}[/tex]

The length of the side of the square is [tex]\boxed{35{\text{ meter}}}.[/tex]

Learn more:

  1. Learn more about inverse of the functionhttps://brainly.com/question/1632445.
  2. Learn more about equation of circle brainly.com/question/1506955.
  3. Learn more about range and domain of the function https://brainly.com/question/3412497

Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Mensuration

Keywords: length, square, area, side of square, width, breadth, area, dimension, measure of sides, dimensions of rectangle, expression, plugging, square field, Rs 2450, 2 per square meter, length of the side.