Question

4. The area of a rectangular field is 25x2 + 20xy + 3y2 square unit. If its length is 5x + 3y unit
find its breadth. Hence, find its perimeter.​

Answer 1

Step-by-step explanation:

It is given that

Area of a rectangular field 25x

2

+20xy+3y

2

square unit

Length =5x+3y unit

We know that

Breadth = Area / Legth

So we get

=(25x+20xy+3y

2

)/(5x+3y)

=5x+y units

Now the perimeter of the rectangular field = 2 (length + breadth)

Substitute the values

=295x+3y+5x+y)

So we get

=2(10x+4y)

=20x+8y