8. If the length of a rectangle is twice its width and its perimeter i

1.	8. If the length of a rectangle is twice its width and its perimeter is 45 cm, find itsarea.
Answer» Step-by-step explanation: Let width of the RECTANGLE = X CM Length of the rectangle = 2x cm Perimeter of the rectangle = 2 [Length + Width] = 2 [2x + x] = 2 x 3x = 6x cm Given perimeter = 54 cm 6x = 54 => x = 9 Length = 2x = 2 x 9 = 18 cm

8. If the length of a rectangle is twice its width and its perimeter is 45 cm, find itsarea.

Answer»

Step-by-step explanation:

Let width of the RECTANGLE = X CM

Length of the rectangle = 2x cm

Perimeter of the rectangle = 2 [Length + Width] = 2 [2x + x] = 2 x 3x = 6x cm

Given perimeter = 54 cm

6x = 54

=> x = 9

Length = 2x = 2 x 9 = 18 cm