Special Right Triangles
What is a right triangle? If you have forgotten check back in to Lesson 1. Do we always have to use the Pythagorean Theorem to solve for lengths of sides? Is there another way? We will be answering these questions and more in Lesson 3.
Learning Objectives for Lesson 3:
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Goals for Lesson 3:
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Special Triangles 101
Certain right triangles have properties that allow you to use shortcuts to determine side lengths without using the Pythagorean Theorem. The theorem still works, these are just shortcuts. The two types of special triangles are 45-45-90 and 30-60-90 triangles. Please take notes on the following information:
Check out this video on how to solve for the length of a side. Just take notes, we will practice solving tomorrow in class.
Any Questions?
Homework:
Time to review! Your homework assignment is to create an infographic displaying what you have learned in these three lessons. You may use easel.ly or piktochart for this project. Please read the rubric on the right and be creative! After you have finished please copy the link to your image and submit it in this Google Document. |
Final Task:
Please take a few minutes and complete this quick five question
QUIZ before class tomorrow.
Please take a few minutes and complete this quick five question
QUIZ before class tomorrow.
Checklist for Lesson 3:
Before coming to class tomorrow make sure you have completed the following:
Before coming to class tomorrow make sure you have completed the following:
- Read the information on 45-45-90 and 30-60-90 triangles and taken notes in your notebook
- Posted at least one question on a post it on the board
- Created an infographic following the guidelines in the rubric
- Submitted the link to your infographic in the Google Doc
- Completed the quick five question quiz
Charles, R. I., Hall, B., Kennedy, D., Bass, L. E., Johnson, A., Murphy, S. J., & Wiggins, G. (2012). Geometry Common Core. Boston, MA: Pearson Education.
Smarter Teacher. (2011, December 13). Solving Special Right Triangles [Video File]. Retrieved from https://youtu.be/1NlekDtqT6I.
Smarter Teacher. (2011, December 13). Solving Special Right Triangles [Video File]. Retrieved from https://youtu.be/1NlekDtqT6I.