Wizard of Oz clip

The classic mess up! Let me know if you can't find the mess up.
clue: the Pythagorean Theorem is (below) and can only be used on right triangles....

He states: "The sum of the square root of two sides of an isosceles triangle is equal to the square root of the third side."

There are two errors. The pythagorean theorem applies to right triangles, not isosceles. Also the theorem is that the squares of two legs equals the square of the hypotenuse.

Properly stated, "The sum of the squares of the two legs of a right triangle is equal to the square of the hypotenuse."

http://www.keypress.com/documents/ALookInside/DiscoveringGeometry/DG_TE_Ch09.pdf

all see saved worksheet!