Lesson 8
Finding Unknown Side Lengths
Lesson Narrative
The purpose of this lesson is to use the Pythagorean Theorem to find unknown side lengths of a right triangle.
Learning Goals
Teacher Facing
- Calculate unknown side lengths of a right triangle by using the Pythagorean Theorem, and explain (orally) the solution method.
- Label the “legs” and “hypotenuse” on a diagram of a right triangle.
Student Facing
Let’s find missing side lengths of right triangles.
Learning Targets
Student Facing
- If I know the lengths of two sides, I can find the length of the third side in a right triangle.
- When I have a right triangle, I can identify which side is the hypotenuse and which sides are the legs.
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| Cumulative Practice Problem Set | docx | |
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