9887
EXPLORE
LATEST
ABOUT
AUTHORING AREA
PARTICIPATE
Your browser does not support JavaScript or it may be disabled!
Interior Angles of a Triangle
The interior angles of a triangle always add up to 180° (or
radians). You can see that by putting the corners together and observing the straight line that they create.
Contributed by:
Jon McLoone
THINGS TO TRY
Drag Locators
SNAPSHOTS
DETAILS
Drag the corners of the triangle to change the angles but notice how the total of the angles never changes.
RELATED LINKS
Triangle
(
Wolfram
MathWorld
)
PERMANENT CITATION
"
Interior Angles of a Triangle
" from
the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/InteriorAnglesOfATriangle/
Contributed by:
Jon McLoone
Share:
Embed Interactive Demonstration
New!
Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site.
More details »
Download Demonstration as CDF »
Download Author Code »
(preview »)
Files require
Wolfram
CDF Player
or
Mathematica
.
Related Demonstrations
More by Author
Multiple Reflections of a Rotating Triangle
George Beck
Arbitrary Curves of Constant Width
Ed Pegg Jr
The Interior Angles of a Triangle Sum to Pi
John Custy
Triangles on a Sphere
Borut Levart
Circles & Triangles
John Kiehl
Triangle Interior
Ed Pegg Jr
Unfolding Polyhedron Nets
Jon McLoone
The Sum of the Interior Angles of a Triangle Equals 180 Degrees by Paper Folding
Sean G. Corcoran (Virginia Tech)
A Rotating Reuleaux Triangle
Chris Boucher
Oriented Triangle Angles
Michael Schreiber
Related Topics
Geometric Models
Geometric Transformations
Plane Geometry
Triangles
High School Geometry
High School Mathematics
Browse all topics
Related Curriculum Standards
US Common Core State Standards, Mathematics
HSG-CO.C.10
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to
Mathematica Player 7EX
I already have
Mathematica Player
or
Mathematica 7+