Definition of Acute Triangle - Math is Fun
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Acute triangle definition - Math Open Reference
In any triangle, two of the interior angles are always acute (less than 90 degrees) *, so there are three possibilities for the third angle: . Less than 90° - all three angles are acute and so the triangle is acute. Exactly 90° - it is a right triangle Greater than 90° (obtuse): the triangle is an obtuse triangle In the figure above, drag the vertices around and try to create all 3 ...
Triangle Classification - Cut-the-Knot
Triangle Classification: as regard the sides and the angles. Inclusive and exclusive definitions
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. An altitude is a line which passes through a vertex of the triangle and is perpendicular to the opposite side. A Euclidean construction
Triangle Types and Classifications: Isosceles, Equilateral ...
Triangles can be classified by various properties relating to their angles and sides. The most common classifications are described on this page.
Types of Triangles based on Angles
Types of triangles based on their angles. A RIGHT triangle has one 90 o angle.; An OBTUSE triangle has one angle that is greater than 90 o.; An ACUTE triangle has all three angles less than 90 o.
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A Maths Dictionary for Kids Quick Reference by Jenny Eather
© Jenny Eather 2014. All rights reserved.
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! It will even tell you if more than 1 triangle can be created.
pert math Study Sets and Flashcards | Quizlet
Quizlet provides pert math activities, flashcards and games. Start learning today for free!