The area of a rectangle of length x is given by 3x^2 + 5x. How do you find the width of the rectangle?
1 Answer
Apr 2, 2016
Explanation:
Since for a rectangle,
#"Area" = "Length" xx "Width"#
Dividing by
#"Width" = frac{"Area"}{"Length"}#
#= frac{3x^2 + 5x}{x}#
#= 3x + 5#
That's it! But do note that in some places, the definition of the length of a rectangle forbids it to be shorter than the breadth of the same rectangle.
