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Definition of Obtuse Triangle - Math is Fun
Math explained in easy language, plus puzzles, games, quizzes, videos and worksheets. For K-12 kids, teachers and parents.

obtuse triangle - K-6 Geometric Shapes
Obtuse Triangle: Only Seven Steps to Mastering this shape - K-6 Geometry

Triangle Types and Classifications: Isosceles, Equilateral ...
How Triangles are classifed as well as defining traits of each type of type.

Mathwords O
index: click on a letter : A: B: C: D: E: F: G: H: I : J: K: L: M: N: O: P: Q: R: S: T: U: V: W: X: Y: Z: A to Z index: index: subject areas: numbers & symbols

How to construct (draw) the orthocenter of a triangle ...
How to construct the orthocenter of a triangle with compass and straightedge or ruler. The orthocenter is the point where all three altitudes of the triangle intersect.

Obtuse - definition of obtuse by The Free Dictionary
Usage Note: Obtuse is sometimes used where one might expect abstruse instead, but the Usage Panel is divided on the acceptability of these usages. In our 2009 survey, 55 percent of the Usage Panel rejected obtuse meaning "recondite," as in The reader has to struggle through dense prose and obtuse references to modern philosophers.

Triangles - Equilateral, Isosceles and Scalene
Equilateral, Isosceles and Scalene. There are three special names given to triangles that tell how many sides (or angles) are equal. There can be 3, 2 or no equal sides/angles:

Obtuse dictionary definition | obtuse defined
not sharp or pointed; blunt; greater than 90 degrees and less than 180 degrees: an obtuse angle; slow to understand or perceive; dull or insensitive

Triangle - Wikipedia
A triangle is a polygon with three edges and three vertices.It is one of the basic shapes in geometry.A triangle with vertices A, B, and C is denoted .. In Euclidean geometry any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane (i.e. a two-dimensional Euclidean space).

Online Triangle Calculator. Enter any valid values and ...
Math Warehouse's popular online triangle calculator: Enter any valid combination of sides/angles(3 sides, 2 sides and an angle or 2 angle and a 1 side) , and our calculator will do the rest!