# Shared Flashcard Set

## Details

philomath_geometry_b_vocab_01
first common list of vocabulary terms for geometry b (week 2)
13
Mathematics
12/19/2012

Term
 altitude of a parallelogramaltitude of a trapezoidaltitude of a triangle
Definition
 __________ of a parallelogram: A perpendicular segment that connects the line containing one base of parallelogram with the side opposite that base.__________ of a trapezoid: A perpendicular segment from a line containing one of the parallel sides of a trapezoid (a base) to the line containing the side opposite that base.__________ of a triangle: A perpendicular segment that connects one vertex of a triangle with the line containing the side opposite that vertex.
Term
 apothem
Definition
 A perpendicular segment connecting the center of a regular polygon and one of the sides of the regular polygon.
Term
 center (of a regular polygon)
Definition
 The point that is equidistant from all vertices of a regular polygon.
Term
 circumference
Definition
 The perimeter ofâ€”or the distance around--a circle.
Term
 converse
Definition
 The statement formed by switching the hypothesis and conclusion of a conditional statement to form a new conditional statement.
Term
 height
Definition
 The length of the altitude of a polygon.
Term
 hypotenuse
Definition
 The longest side in a right triangle. It is opposite the right angle in the right triangle.
Term
 perimeter
Definition
 The sum of the side lengths of a polygon.
Term
 polygon
Definition
 A closed plane figure formed from three or more segments such that each segment intersects exactly two other segments, one at each endpoint, and no two segments with a common endpoint are collinear.
Term
 postulate
Definition
 A statement that is accepted as true without proof. (Also known as an axiom).
Term
 regular polygon
Definition
 A polygon that is equiangular and equilateral. That is, all of its angles have the same measure, and all of its sides have the same measure.
Term
 right angle
Definition
 An angle whose measure is 90 degrees.
Term
 theorem
Definition
 A statement that has been proven true using deductive reasoning.
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