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Equilateral Triangle
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Equilateral Triangle
Perimeter
Circumcircle of an
Equilateral Triangle
Equilateral Triangle
Area
Equilateral Triangle
Construction
Equilateral Triangle
Angles
Equilateral Triangle
Incircle of an
Equilateral Triangle
How to
Draw an Equilateral Triangle
Isosceles and
Equilateral Triangles
Equilateral Triangle
Formula
Square
Symmetry
Circle
Hexagon
Trigonometry
Pentagon
Triangle
Polygon
Geometry
Pythagoras Theorem
6:27
Khan Academy
Sal Khan
Isosceles & equilateral triangles problems
Isosceles triangles have two congruent sides and two congruent base angles. Equilateral triangles have all side lengths equal and all angle measures equal. We use these properties to find missing angles in composite figures. The problems are partly from Art of Problem Solving, by Richard Rusczyk.
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