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### 64 Cards in this Set

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 RIGHT ANGLE 90 degree angle ACUTE ANGLE less than 90 degrees OBTUSE ANGLE greater than 90 degrees SUPPLEMENTARY ANGLES together = 180 degrees VERTEX Point at which two lines meet VERTICAL ANGLES directly across and equal MIRRORED Pythagoreum Theory a^2 + b^2 = c^2 Hypotinese = c (longest side) POSTULATE 1 Through any two points, there is exactly one line. POSTULATE 2 A line contains at least two distinct points POSTULATE 3 Through any three noncollinear points, there is exactly one plane. POSTULATE 4 A plane contains at least three noncollinear points. POSTULATE 5 If two distinct points lie in a plane, then the line joining them lies in that plane. POSTULATE 6 If two distinct planes intersect, then their intersection is a line. POSTULATE 7 on a ruler or number line, you can find the distance between two points by substracting their coordinates and then taking the absolute value. m