Find the length of the missing side of the trapezoid below.
https://latex.artofproblemsolving.com/3/a/d/3ad77a63d06d2860a6b5f41fc257254b632f99a3.png- thats the picture
1. Draw a line down from that top left corner, perpendicular to the bottom line.
2. That creates a right triangle with hypotenuse = 7 and bottom leg = 3.
3. Use Pythagoras' Theorem to solve for the third side of the right triangle.
4. The answer you got in # 3. is the length of the missing side.
Hint: It's sqrt(40) but show your work so the teacher will think you did it.