Skip Navigation

Comparing Angles and Sides in Triangles

Inequality theorems and ordering angles and sides of triangles.

Atoms Practice
Estimated7 minsto complete
Practice Comparing Angles and Sides in Triangles
This indicates how strong in your memory this concept is
Estimated7 minsto complete
Practice Now
Turn In
Triangle Sum Theorem
Teacher Contributed

RWA Triangle Sum Theorem


Spherical Geometry


  • triangle sum theorem
  • comparing angles and sides in triangles
  • sphere
  • Spherical Geometry

Student Exploration

Do the angles in a triangle always add up to 180 degrees? How are the lengths of the sides of a triangle are controlled by the sizes of the angles in Spherical Geometry?

Watch the video below to learn more


Extension Investigation

  1. Students can make a presentation like the one below http://www.youtube.com/watch?v=b7DmUymGR28&feature=related
  2. Virgo is one of the constellations of Zodaic. Three principal stars of the constellation form a triangle. If \begin{align*}m \angle S = 25\end{align*} and \begin{align*}m \angle P = 135\end{align*}, then find the \begin{align*}m \angle V\end{align*}. http://worksheets.tutorvista.com/angles-in-a-triangle-worksheet.html

Layering (optional)

How do we show that all of the angles the triangle add up to 180?

Watch these videos to see how

Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes
Show More

Image Attributions

Explore More

Sign in to explore more, including practice questions and solutions for Triangle Sum Theorem.
Please wait...
Please wait...