Formulas from Geometry, Part 2 -
Angles
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Acute angle |
Obtuse angle |
Right angle |
Straight angle |
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Definition: Complementary
angles add to 90 o |
Definition: Supplementary angles add to 180 o |
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A + B = 90 o
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A + B = 180 o
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The sum of the interior angles in any triangle is 180
o A
+ B + C = 180 o
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Theorem: Opposite angles are equal |
Theorem: Transverse angles are equal |
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