Untitled Deck Flashcards
State the Vertical Angles Theorem.
Vertical angles are always congruent.
State the Linear Pair Postulate.
If two angles form a linear pair, then they are supplementary.
What is the definition of a midpoint?
The midpoint of a segment divides the segment into two congruent parts.
State the Corresponding Angles Postulate.
If two parallel lines are cut by a transversal, then the corresponding angles are congruent.
State the Alternate Interior Angles Theorem.
If two parallel lines are cut by a transversal, then the alternate interior angles are congruent.
What is the definition of an isosceles triangle?
An isosceles triangle has at least two congruent sides.
State the Triangle Sum Theorem.
The sum of the measures of the angles of a triangle is 180 degrees.
What is the Pythagorean Theorem?
In a right triangle, a² + b² = c², where a and b are the legs and c is the hypotenuse.
What is the definition of a perpendicular bisector?
A perpendicular bisector is a line, segment, or ray that is perpendicular to a segment at its midpoint.
What is the definition of a median of a triangle?
A median is a segment drawn from a vertex of a triangle to the midpoint of the opposite side.
What is the definition of an altitude of a triangle?
An altitude is a perpendicular segment drawn from a vertex of a triangle to the opposite side or its extension.
