Greetings Students,
In this lesson we used protractors to measure the three angles inside of various triangles. We added up our results and conjectured that the sum of the interior angles of a triangle is 180 degrees.
We created our first triangle theorem:
Triangle Theorem 1: The sum of the interior angles of a triangle is 180 degrees.
For Extra Practice and Explanation: http://www.regentsprep.org/Regents/math/geometry/GP5/LIntAng.htm
For a Challenge follow along with this video: http://www.youtube.com/watch?v=OPG-9IFnJnI
Attached below are the classwork and homework assignments for Topic 1.
[gview file=”https://www.whsad.org/wp-content/uploads/2014/09/Lesson-1-Activity-Sheet.doc”]
[gview file=”https://www.whsad.org/wp-content/uploads/2014/09/Lesson-1-Homework.doc”]