SOLUTION: The length of a rectangle is 3 times the width. The perimeter is 96 cm. Find the width and length.
can you please include the formula
Algebra ->
Rectangles
-> SOLUTION: The length of a rectangle is 3 times the width. The perimeter is 96 cm. Find the width and length.
can you please include the formula
Log On
You can put this solution on YOUR website! So, the perimeter for a rectangle = 2(length + width)
And we know that the length is 3 times the width.
So length, l = 3w.
Substitute.
We get that 2(3w + w) = 96 (And the 96 is the 96 cm provided by the problem)
Distribute!
6w + 2w = 96
8w = 96
w = 12 cm
And so recall that length = 3w
length = 3(12)
length = 36 cm
(