Bellwork
1) x 2  100
2) x 2  9  25
3) Simplify 20
Lesson 7.1
Apply the
Pythagorean
Theorem
Objective
• Students will find side lengths in right
triangles
Standards
• 15.0 – Students use the Pythagorean Theorem
to determine distance and find missing length
of sides of right triangles.
• 14.0 – Students prove the Pythagorean
Theorem
Academic Language
•
•
•
•
Pythagorean Triangle
Right triangle
Leg of a right triangle
Hypotenuse
–Use any method to look up as assigned:
»Pythagorean, Triangle, Right, Triangle,
Leg, Right Triangle, Leg of a right triangle,
hypotenuse
History Lesson
Pythagoras
- Ancient Greek mathematician who lived
around 500 BC
hypotenuse
leg
leg
leg  leg  hyp
2
2
2
Practice
Practice
Real World
In Partners…..
Pythagorean Triples
Find a few
Homework
• p.436 #1, 2, 3, 7, 11, 19, 31, 32