Lesson 1.2.3: Solve for unknown angles (angles in a triangle) |
For this lesson there are 5 steps for you to take. Scroll down and do each step one-by-one. The instructions under each step will help clarify exactly what you need to do, so please read all the instructions.
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Here is the worksheet for Lesson 1.2.3
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1. Video: Targets and Vocab
Watch this video and copy down all the notes. I will discuss the target for this lesson and important vocabulary that we need to know. |
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2.) Video: Triangle Rules
Watch this video to learn some rules about triangles and their angles. These are the rules we will be using when justifying our answer as we find unknown angles. |
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4.) Video: Examples
Watch this video to see how I solved the Examples from above. Feel free to put the speed at 1.25 or 1.5 while watching this since you already solved this. If you find that your answers are incorrect, make sure to slow the video back down and copy my method. |
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