The Pythagorean Theorem
Grade 10th Grade · Math · 40 min
What's Included
Learning Objective
I can use the Pythagorean theorem to find missing side lengths of right triangles.
Warm-Up Video
Math with Mr. J · 7:36
Pythagorean Theorem: Finding the Length of a Missing Leg | Math with Mr. J
Guided Notes
3 key concepts
- 1
The Pythagorean theorem uses the formula a² + b² = c², where 'c' represents the hypotenuse and 'a' and 'b' represent the legs of a right triangle.
- 2
We can use the Pythagorean theorem to find the length of a missing leg of a right triangle when the lengths of the other two sides are known.
- 3
To solve for a missing leg, you must first square the known values, then isolate the squared variable, and finally take the square root of both sides.
Practice Questions
6 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“A right triangle has one leg that measures 8 inches and a hypotenuse that measures 10 inches. Use the Pythagorean theorem to find the length of the missing leg. Show all steps.”
Complete Lesson Package
Get all 3 ready-to-use resources: