Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Adding the Angles in a Triangle: IM 8.1.15
    1. Lesson 8.1.15
    2. Practice 8.1.15

    Adding the Angles in a Triangle: IM 8.1.15

    Author:GeoGebra Classroom Activities
    Topic:Angles, Geometry, Triangles
    “Adding the Angles in a Triangle” from IM Grade 8 by Open Up Resources and Illustrative Mathematics. Licensed under the Creative Commons Attribution 4.0 license.
    Adding the Angles in a Triangle: IM 8.1.15

    Table of Contents

    • Lesson 8.1.15

      • IM 8.1.15 Lesson: Adding the Angles in a Triangle
    • Practice 8.1.15

      • IM 8.1.15 Practice: Adding the Angles in a Triangle
    Next
    IM 8.1.15 Lesson: Adding the Angles in a Triangle

    New Resources

    • How to Draw a Cube in 2D
    • Nikmati Keunggulan Di Bandar Judi Terpercaya
    • Untitled
    • Two Triangle Theorem
    • Proving Triangles Similar: Multistep Transformations

    Discover Resources

    • George B - tranlation sin cos
    • การบวกจำนวนเต็มบวกกับจำนวนเต็มลบ
    • Number Dots and Place Value

    Discover Topics

    • Rotation
    • Hyperbola
    • Confidence Interval
    • Vectors 3D (Three-Dimensional)
    • Step Functions
    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®