SOLUTION: I need help with this question.
The length of a rectangle is 4cm more that 2 times its width. If the area of the rectangle is 61cm^2, find the dimensions of the rectangle to t
The length of a rectangle is 4cm more that 2 times its width. If the area of the rectangle is 61cm^2, find the dimensions of the rectangle to the nearest thousandth. Answer by MathLover1(20849) (Show Source):
You can put this solution on YOUR website! the area of a rectangle is:
given:
and the of a rectangle is that its , and we can write it this way:
............we will substitute this in formula for area
in order to find the dimensions of the rectangle
.........move to the right
or
.............now we can use quadratic formula to solve for
then:
..........we don't need negative value, lenght is positive value
