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Big Ideas Chapter 13

TermDefinition
acute triangle A triangle that has three acute angles.
equilateral triangle A triangle that has three angles with the SAME measure.
equilateral triangle A triangle that has three sides with the SAME length.
isosceles triangle A triangle that has two sides with the same length.
line of symmetry The symmetry that a shape has when it can be folded on a line so that two parts match exactly.
obtuse triangle A triangle that has one obtuse angle.
parallelogram A quadrilateral that has two pairs of parallel sides and opposite equal angles.
rectangle A parallelogram that has four right angles and equal opposite sides.
rhombus A parallelogram that has four sides with the same length.
right triangle A triangle that has one right angle.
scalene triangle A triangle that has one right angle.
square A parallelogram that has four right angles and four sides with the same length.
trapezoid A quadrilateral that has exactly one pair of parallel sides.
hexagon A quadrilateral that has exactly one pair of parallel sides.
octagon A quadrilateral that has exactly one pair of parallel sides.
quadrilateral A quadrilateral that has exactly one pair of parallel sides.
triangle A triangle is a polygon with three corners and three sides.
Created by: aclouse
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