Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. Parallel Lines and the Angle in a Triangle: IM 8.1.16
    1. Lesson 8.1.16
    2. Practice 8.1.16

    Parallel Lines and the Angle in a Triangle: IM 8.1.16

    Author:GeoGebra Classroom Activities, IM 6 – 8 Math
    Topic:Angles, Geometry, Triangles
    “Parallel Lines and 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.
    Parallel Lines and the Angle in a Triangle: IM 8.1.16

    Table of Contents

    • Lesson 8.1.16

      • IM 8.1.16 Lesson: Parallel Lines and the Angle in a Triangle
    • Practice 8.1.16

      • IM 8.1.16 Practice: Parallel Lines and the Angles in a Triangle
    Next
    IM 8.1.16 Lesson: Parallel Lines and the Angle in a Triangle

    New Resources

    • Maclaurin and Taylor Polynomial
    • Quiz: Vertical Angles and Linear Pairs
    • Quadric Surfaces and Cylinders
    • seo tool
    • Luxembourg Symbol (2)

    Discover Resources

    • Solid of Revolution around x axis
    • Circle Theorems
    • Icosahedron to Borromean Rings
    • Segitiga Part 3
    • Translating and Graphing Basic Inequalities

    Discover Topics

    • Trigonometry
    • Matrices
    • Equilateral Triangles
    • Rhombus
    • Circle
    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

    © 2025 GeoGebra®