Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Lesson
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Angle Addition Postulate: Formative Assessment

Author:Tim Brzezinski
Topic:Addition, Algebra, Angles, Equations, Geometry, Line Segment, Linear Equations

FYI: The diagram is drawn to scale.

You can work in this Graspable Math whiteboard (in another tab) to help you solve the problem above.

New Resources

  • Pythagorean Theorem: Extension Exercises
  • Compound Inequality Illustrator: Conjunctions and Disjunctions
  • Right Triangle Inscribed in a Semicircle
  • Squaring a Rectangle (PST Version)
  • Perpendicular Lines: Quick Exploration

Discover Resources

  • Quiz on Multiplication Table 乘數表:測驗
  • Geometric Properties Triangle
  • Understanding the VOLUME of rectangular prisms
  • Versions of 3-Component RHR
  • G.GSRT.2 Proving Triangles Similar (3)

Discover Topics

  • General Quadrilateral
  • Pyramid
  • Cube
  • Binomial Distribution
  • Rhombus
AboutPartnersHelp Center
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2026 GeoGebra®