Question

length of a rectangle is three times it's breadth . perimeter of the rectangle is 40 cm. find it's length and width
​

Answer 1

Answer:

The length of the rectangle is= 15 cm

And the breadth of the rectangle is= 5 cm

Step-by-step explanation:

It is given that length of a rectangle is 3 times the breadth of the rectangle

Now let breadth of the rectangle is= x cm

The the length of the rectangle is= 3x cm

So, the perimeter of the rectangle is=2×(3x+x) cm = 2×4x cm = 8x cm

Now by given condition,

8x = 40

=> x = 40÷8= 5

So, the breadth of the rectangle is= 5 cm

And the length of the rectangle is= 3×5

= 15 cm