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Geometry Cheat Sheet
Parallel lines never touch ( = )
Perpendicular lines form a right angle ( + )
Intersecting lines cross each other ( x )
Symmetry means that you can fold it in half and both halves would be the same <> and { } are symmetrical
Obtuse angles are larger than 90 degrees __/
Acute angles are smaller than 90 degrees <
Right angles are 90 degrees L
Scalene triangles have NO equal sides
Isosceles triangles have 2 equal sides
Equilateral triangles have all equal sides
Lines go on forever both directions ←→
Line segments stops at both ends (a part of a line) ------
Rays start at a point and go on forever in only one direction --->
Angles have a vertex <
Points are like a dot .
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