Topic C: The Pythagorean theorem

Topic C includes lessons 13-14 and covers proof of the Pythagorean theorem and the converse of the Pythagorean theorem.

Intro to the Pythagorean theorem

Pythagorean theorem example

Pythagorean theorem word problem: carpet

Use Pythagorean theorem to find right triangle side lengths

Pythagorean theorem with isosceles triangle

Use Pythagorean theorem to find isosceles triangle side lengths

Right triangle side lengths

Use area of squares to visualize Pythagorean theorem

Pythagorean theorem word problem: fishing boat

Pythagorean theorem word problems

Thiago asks: How much time does a goalkeeper have to react to a penalty kick?

Garfield's proof of the Pythagorean theorem

Bhaskara's proof of the Pythagorean theorem

Pythagorean theorem proof using similarity

Another Pythagorean theorem proof