Question

The length of a rectangle is 3 times its breadth if the area of the rectangle is 1875sq cm find it's preimeter

Answer 1

Answer:

200cm

Let breadth of rectangle be x cm.

Therefore Length of rectangle is 3x cm

We know, Area of Area of rectangle = Length× breadth

1875 = 3x × x

1875 = 3x^2

3x^2 = 1875

x^2. = 1875/3

x^2. = 625

x. =√625

x. = 25

breadth = x = 25cm

length = 3x= 25x3= 75cm.

Perimeter of rectangle=2(Length× breadth)

=2(78+25)

= 2( 100)

= 200 cm.

Therefore Perimeter of that rectangle is 200