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Triangles: Acute, Right, and Obtuse
Drag the orange vertex to reshape the triangle.
A triangle is:
acute
if all of its angles are less than 90°;
right
if one of its angles is 90°;
obtuse
if one of its angles is greater than 90°.
Contributed by:
Jay Warendorff
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Acute Triangle
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Wolfram
MathWorld
)
Obtuse Triangle
(
Wolfram
MathWorld
)
Right Triangle
(
Wolfram
MathWorld
)
Triangle
(
Wolfram
MathWorld
)
PERMANENT CITATION
"
Triangles: Acute, Right, and Obtuse
" from
the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/TrianglesAcuteRightAndObtuse/
Contributed by:
Jay Warendorff
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Related Topics
Euclid's Elements
Plane Geometry
Triangles
High School Geometry
High School Mathematics
Middle School Mathematics
Browse all topics
Related Curriculum Standards
US Common Core State Standards, Mathematics
4.G.A.1
4.G.A.2
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