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math chapter12 vocab

TermDefinition
Regular Polygon A polygon with all sides and angles congruent
Irregular polygon A polygon where not all sides and angles are congruent
Triangle A polygon with 3 sides
quadrilateral A polygon with 4 sides
pentagon A polygon with 5 sides
hexagon A polygon with 6 sides
octagon A polygon with 8 sides
acute triangle A triangle with all acute angles
obtuse triangle A triangle with 1 obtuse angle
right triangle A triangle with 1 right angle
scalene triangle A triangle with no congruent sides
isosceles triangle A triangle with 2 congruent sides
equilateral triangle A triangle with all congruent sides
Trapezoid Quadrilateral with 1 pair of parallel sides
Parallelogram Quadrilateral with opposite sides that are congruent and parallel
Rectangle Parallelogram with 4 right angles
Square Parallelogram with 4 right angles and 4 congruent sides
Rhombus Parallelogram with 4 congruent sides
circumference Distance around the outside of a circle
chord A line segment with its endpoints on the circle but doesn’t go through the center
radius A line segment from the center to the outside of the circle
diameter A chord that passes through the center of a circle
Created by: trent-sauer