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Geometry - triangles

polygons, triangles, quads

TermDefinition
polygon a closed, plain figure with 3 or more lines and points
regular polygon all sides and angles ARE the same
non-regular polygon sides and angles are NOT the same
congruent the same or equal
equilateral triangle triangle with equal sides
isosceles triangle triangle with 2 equal sides
scalene triangle triangle with NO equal sides
right triangle triangle with one RIGHT angle
acute triangle triangle with one ACUTE angle
obtuse triangle triangle with one OBTUSE angle
parallel 2 lines that DON'T TOUCH each other
perpendicular 2 lines that CROSS each other at right angles
rectangle A shape that has 4 right angles
Created by: dtanner