Laying the Foundation. Geometry. Pythagorean Theorem Applications. Problem 7.
What is the area of the trapezoid: bases 10 cm and 24 cm, and legs 13 cm and 15 cm?
Try this on your own first. If stuck, play the clip up to the point you think you can carry on without the help. Then pause it and try to finish it on your own. Doing the work by yourself first is the best way to improve your learning. I'm posting this solution so that you don't feel helpless when trying this on your own.