Investigating Geometry: Right Triangles

Henrico County Public Schools

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May 2006

Lesson 7-2: The Pythagorean Theorem

Objective:

SOL G.8: The student will solve real-world problems involving right triangles by using the Pythagorean Theorem.

 Applet Directions 1 Close 
  1. Given: A 6 foot ladder leans against a brick wall.

  2. If the base of the ladder moves one foot closer to the wall, then how much higher will the top of the ladder rise?

  3. To change the diagram, slide point B.

  Hands-On Activities Close 
  1. Proof A
  2. Proof B
  3. Reducing Radicals PowerPoint

 Other Web Sites Close 

  1. Glencoe: On Line Quiz
  2. Pythagorean Theorem and Right Triangle Facts: math.com This is a four step process: Steps 1 through 3 are similar to a textbook while step 4 is an online multiple choice "quiz" with instant feedback.
  3. Impossible Triangles "Determine why the triangles below could not be drawn as indicated. Delect the rule that each one violates."
  4. Working with the Pythagorean Theorem Ten multiple choice questions with instant feedback and explanations.

 Puzzle & Problems tangram Close 
  1. Proof Puzzle
  2. Problem 1
  3. Problems in Context 6 problems.