Geometry Facts Flashcards
A triangle that has three acute angles
Acute triangle
A triangle that has all three sides the same length
Equilateral triangle
A polygon with exactly 6 sides and 6 angles
Hexagon
a triangle that has at least two sides the same length
isosceles triangle
A triangle that has one obtuse angle
obtuse triangle
a two dimensional closed figure made with three or more straight line segments that do not cross over each other.
polygon
a triangle that has one right angle
right triangle
a triangle that has no sides the same length
scalene triangle
a quadrilateral with exactly one pair of parallel sides
trapezoid (exclusive)
a quadrilateral with at least one pair of parallel sides
trapezoid (inclusive)
a polygon with exactly 3 sides and 3 angles
triangle
lines that are always the same distance apart and never cross
parallel lines
two lines that meet to form a right angle
perpendicular lines
a quadrilateral with opposite sides parallel and equal in length
parallelogram
a quadrilateral with all sides the same length
rhombus
