Trapezoid Problem: Calculate X Using Area=36 and Height=3

Question

Using the data from the figure, calculate X:

00:00 Find X

00:03 Draw the height in the parallelogram

00:07 Use the formula for calculating parallelogram area

00:12 Side times height, note that we'll use the entire side

00:15 Substitute appropriate values and solve for X

00:17 Expand brackets properly, multiply by each factor

00:23 Isolate X

00:29 And this is the solution to the question