Today's focus is on the Triangle Sum Theorem, which states that the interior angles of a triangle add up to be 180 degrees. Our objectives are:
1) Give the Triangle Sum Theorem
2) Give the Third Angle theorem
3) Give the Exterior Angle Theorem
4) Find the measures of interior and exterior angles in a triangle
We completed a worksheet in class for practice, then students worked on our graded assignment. Video demonstrations and step by step solutions can be found here.
Homework:
page 227-230, #'s 16-23, 29-34 & 41-43
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