Calculate Trapezoid Height X: Area 30 with Bases 3.5 and 7.5

Question

Calculate X according to the data in the figure:

00:11 Let's find the height, X.

00:14 To do this, we'll use the area formula for a trapezoid.

00:19 Remember, the entire side equals the sum of its parts.

00:24 That's the sum of the bases, times the height, divided by 2.

00:35 We'll substitute the given values and solve for X. Ready?

00:56 First, divide 20 by 2.

00:59 Next, we'll isolate X on one side of the equation.

01:06 And that's how we solve the problem. Great job!