Special Right Triangles - Pi Elimination!

Grade Levels
8th - 11th
Resource Type
Formats Included
  • Zip
24 Slide Game + 2 Page Student Activity Sheet
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This PowerPoint game is a fun way for students to solve for missing side lengths in special right triangles (30°-60°-90° and 45°-45°-90°). A breakdown of the questions in this resource is provided below.

- Using properties of 30-60-90 triangles to determine missing side lengths and angle measures (9 questions)
- Using properties of 45-45-90 triangles to determine missing side lengths and angle measures (8 questions)
- Applications of 30-60-90 triangles (3 questions)
- Applications of 45-45-90 triangles (2 questions)
- Applications of 30-60-90 triangles and 45-45-90 triangles in a single problem (2 questions)

To play, start by splitting your class up into two teams. Then, run the PowerPoint and click on the “play” button to navigate to the home screen. Team 1 will start by selecting a number from the bottom of the screen. This will take them to a question. Everyone will work the problem on their student activity sheet, showing work when necessary. Once enough time has been given, Team 1 will give an answer and the class will check their answer by clicking on the “answer” button. If their answer is correct, return to the home screen and Team 1 chooses a Pi symbol to eliminate. Doing this causes a point value to pop up on the screen. This value represents the number of points Team 1 earns for correctly answering their question. Team 2 then takes over and picks a question. If they answer their question correctly, they can eliminate a Pi symbol to determine the number of points they earn before Team 1 gets another turn. Play continues in this back-and-forth manner until all questions in the game have been answered!

As the play progresses, you will need to keep track of the total points each team is earning. Whichever team has the greatest total points at the end of the game, wins!

*Note: If at any point a team incorrectly answers a question, the other team takes over and the answering team does not get the chance to eliminate a Pi symbol or earn any points.

The game contains 24 questions, step-by-step instructions, a student activity sheet, and an answer key (as part of the PowerPoint presentation)!

The zip file contains a PowerPoint file and two pdfs. Please make sure your device can open these file types before purchasing. Thank you!

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Total Pages
24 Slide Game + 2 Page Student Activity Sheet
Answer Key
Teaching Duration
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