circle: the set of all points in a plane a given distance from a given point.
congruent: equal measure
hexagon: a six-sided polygon
heptagon: a seven-sided polygon
octagon: an eight-sided polygon
parallelogram: a quadrilateral with both pairs of opposite sides parallel
pentagon: a five-sided polygon
similar: figures that have the same shape, but not necessarily the same size
rectangle: a quadrilateral with 4 right angles
trapezoid: a quadrilateral with exactly one pair of opposite sides parallel
- isosceles trapezoid: a trapezoid with the un-parallel opposite sides congruent
triangle: a 3-sided polygon
- equilateral triangle: a triangle with all sides congruent
- isosceles triangle: a triangle with at least two sides congruent
- right triangle: a triangle with a right angle
- scalene triangle: a triangle with no sides congruent
congruent: equal measure
hexagon: a six-sided polygon
heptagon: a seven-sided polygon
octagon: an eight-sided polygon
parallelogram: a quadrilateral with both pairs of opposite sides parallel
pentagon: a five-sided polygon
similar: figures that have the same shape, but not necessarily the same size
rectangle: a quadrilateral with 4 right angles
trapezoid: a quadrilateral with exactly one pair of opposite sides parallel
- isosceles trapezoid: a trapezoid with the un-parallel opposite sides congruent
triangle: a 3-sided polygon
- equilateral triangle: a triangle with all sides congruent
- isosceles triangle: a triangle with at least two sides congruent
- right triangle: a triangle with a right angle
- scalene triangle: a triangle with no sides congruent