One more and then I'm ready for tomorrow's test!!
The length of a rectangle is one unit more than its width. If the area is 30 sq units, find the dimensions of the rectangle.
Let and represent the width and length of the triangle respectively. We know that the length of rectangle is one more unit than its width:
and we're told the area of the rectangle is 30 sq units:
Now substitute (1) into (2) to get
Can you continue and solve the quadratic equation?
(you'll see that one of the solutions to the quadratic equation won't work)