Question

length of a rectangle is 5 cm more than its breadth. if the area of rectangle is 50cm square,then find the length of rectangle?

Answer 1

its simple, take b=x and l=x+5 so if u calculate the length of rectangle will b 10 cm

Answer 2

Answer:

The length of the rectangle be 10 cm .

Step-by-step explanation:

Formula

Area of a rectangle = Length × Breadth

As given

length of a rectangle is 5 cm more than its breadth.

Let us assume that the breadth be x .

Than

Length becomes = 5 + x

Putting values in the above

50 = x × (5+x)

50 = x² + 5x

x² + 5x - 50 = 0

x² + 10x - 5x - 50 = 0

x (x + 10) -5 (x+ 10) = 0

(x +10)(x-5) = 0

x = 5 and x = -10

(As the breadth sides of the rectangle cannot be negative .

Thus ignore x = -10 )

Take x =  5

Length = x + 5

           = 5 + 5

           = 10 cm

Therefore the length of the rectangle be 10 cm .