I can solve for the missing angle using complementary, supplementary and vertical angles.
I can solve for the missing angle in a triangle.
I can find the sum of the interior angles in a polygon.
I can find the measure of an interior angle or an exterior angle in a polygon.
MN State Standards*:
6.3.2.1 Solve problems using the relationships between the angles formed by intersecting lines.
6.3.2.2 Determine missing angle measures in a triangle using the fact that the sum of the interior angles of a triangle is 180 degrees. Use models of triangles to illustrate this fact.
6.3.2.3 Develop and use formulas for the sum of the interior angles of polygons by decomposing them into triangles.