CPM Homework Banner

Home > CCG > Chapter 2 > Lesson 2.1.1 > Problem 2-11

2-11.

Jerry has an idea. Since he knows that an isosceles trapezoid has reflection symmetry, he reasons, “That means that it must have two pairs of angles with equal measure.” He marks this relationship on his diagram below.

Copy the shapes below onto your paper. Similarly mark which angles must have equal measure due to reflection symmetry. Homework Help ✎

  1. Kite
    KITE

  1. Isosceles Triangle
    ISOSCELES TRIANGLE

  1. Regular Hexagon
    REGULAR HEXAGON

  1. Rhombus
    RHOMBUS

Draw all lines of symmetry.

Mark the angles that correspond and are on opposite sides of the line of reflection.