Sum of the interior angles of a polygon

Today we calculated the sum of the interior angles of several polygons and derived a formula (number sentence) to help us find the sum no matter how many sides a polygon has. This formula is (n - 2) times 180, with n being the number of sides of the polygon.

Homework:
Unit Review Packet


The homework is review for the QUIZ we are having on WEDNESDAY this week. We will be reviewing concepts tomorrow in preparation for the quiz. Please plan to stay after school Tuesday, or come for extra help before school on Tuesday or Wednesday if you are having difficulty preparing for the quiz.
Concepts that will be on the quiz:
lines
angles
triangles (classifying)
polygons
symmetry
congruence and similarity
transformations, drawing shapes on the coordinate grid
three-dimensional figures, faces, edges, vertices
sum of interior angles of a polygon