Triangle Sum

Explore, investigate, and finally prove the angles in a triangle have a sum of 180 degrees. Young geometers use the Interior Angles Theorem, and properties and definitions of congruency. 

69 Views 63 Downloads
CCSS: Designed
Resource Details

Grade
9th - 11th
Subjects
Math
1 more...
Resource Type
Lesson Plans
Duration
45 mins
Instructional Strategies
Guided Practice
1 more...
Technology
Ed Software
Video
Common Core