book of geogebra

Table of Contents

• congruent triangles

  • Triangle Exterior Angle
  • Exterior Angles of a Triangle
  • Triangle Angle Sum Theorem

• angles

  • Triangle Exterior Angle
  • Solution to Parallel Lines & Angles Problem
  • Animation 138
  • SAS - Exercise 1A

• circles

  • Circle Area (By Peeling!)
  • Area of a Circle (III)