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Triangle
A triangle is a polygon which has three sides and vertices, whose internal angles add up to 180 degrees.
Any side of a triangle can be considered a base (B).
The distance from the base to the vertice that does not touch it is the height (H).
Classifications
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A right triangle is a triangle that contains one angle equal to 90 degrees.
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An acute triangle is a triangle that consists entirely of angles less than 90 degrees.
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An obtuse triangle is a triangle that contains one angle more than 90 degrees.
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An equilateral triangle's 3 sides and angles are always equal in length and degree (and therefore the angles are equal to 60 degrees).
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An isosceles triangle has 2 sides and angles that are equal in length and degree.
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A scalene triangle has no sides or angles that are equal in length or degree.
