Transformations and Congruence Opening routine Midpoint of a segment The endpoint A of a line segment AB is located in (2, 5) and the midpoint M is in (5, 1). Find the coordinates of the endpoint B.

Topic I: Transformations and Congruence

Transformations and Congruence Angle measure and angle bisector Objective: Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc. Essential Question: How is measuring an angle similar to and different from measuring a line segment?

Transformations and Congruence Angle measure and angle bisector Vocabulary

Transformations and Congruence Angle measure and angle bisector Construct a copy of one angle http://www.mathopenref.com/constcopyangle.html

Transformations and Congruence Angle measure and angle bisector

Transformations and Congruence Angle measure and angle bisector

Transformations and Congruence Angle measure and angle bisector

Transformations and Congruence Angle measure and angle bisector

Transformations and Congruence Angle measure and angle bisector

Transformations and Congruence Angle measure and angle bisector

Transformations and Congruence Angle measure and angle bisector

Transformations and Congruence Angle measure and angle bisector

Transformations and Congruence Angle measure and angle bisector Construct an angle bisector http://www.mathopenref.com/constbisectangle.html

Transformations and Congruence Angle measure and angle bisector

Transformations and Congruence Angle measure and angle bisector YOU DO - Independent Practice Worksheet Pages 19 and 20

Transformations and Congruence Angle measure and angle bisector Homework Complete Worksheet Pages 19 and 20

Transformations and Congruence Angle measure and angle bisector Closure Essential Question: How is measuring an angle similar to and different from measuring a line segment?