The length of a rectangle is four times its width. Its perimeter is no greater than 170 cm. Find
the greatest possible dimensions of the rectangle.

Respuesta :

The greatest length will be the length and the breadth.

Perimeter is 2 * (l + b)

2 * (4b + b) = 170 (length is 4 times breadth)

2 * 5b = 170

5b = 170/2 = 85

b = 85 / 5 = 17

l = 4b

l = 4 * 17 = 68

So the largest possible dimensions are [tex]68 * 17 cm[/tex] :D