Question

the length of a rectangle is three times its breadth the perimeter is 84 metre find the length of the rectangle​

Answer 1

Answer:

Here is ur answer :

Let width be x.

Length be 3x.

Perimeter = 84 m

Perimeter of Rectangle = 2( l + b)

➡️ 84 = 2 (3x + x)

➡️ 84/2 = 4x

➡️ 42 = 4x

➡️ x = 42/4

➡️ x = 10.5

Width = 10.5m

Let width = 31.5m

Answer 2

Answer:

Answer in attachment

hope it helps