math 1
If 2 lines and a transversal form same-side interior angles that are supplementary, hen the lines are parallel
What is the Converse of the Same-Side Interior Angle Postulate?
The sum of the measures of a linear pair is 180.
What is the Linear Pairs Theorem?
All right angles are congruent?
What is the Right Angle Postulate?
If a transversal intersects 2 parallel lines, then the same-side interior angles are supplementary.
What is the Same-Side Interior Angles Postulate?
If three parallel lines intersect two transversals, then they divide the transversals proportionally.
What is the 3 parallel lines Theorem?
If 2 angles are congruent & supplementary, then each is a right angle.
What is the Congruent Supplements Theorem?
If 2 lines an a transversal form alternate exterior angles that are congruent, then the lines are parallel.
What is the Converse of the Alternate Exterior Angles Theorem?
If 2 angles are vertical angles, then the angles are congruent.
What is the vertical angles theorem?
If 2 lines and a transversal form alternate interior angles, then the lines are parallel.
What is the Converse of the Alternate Interior Angles Theorem?
The sum of the measures of all the angles of a triangle is 180.
What is the Triangle Angles-Sum Theorem?
If 2 lines and a transversal form corresponding angles that are congruent, then lines ae parallel.
What is the Converse of the Corresponding Angles Theorem?
If a transversal intersects 2 parallel lines, then alternate exterior angles are congruent.
What is the Alternate Exterior Angles Theorem?
If a transversal intersects 2 parallel lines, then corresponding angles are congruent.
What is the Corresponding Angles Theorem?
If 2 angles are complementary to congruent angles (or to the same angle), then thy are congruent.
What is the Congruent Complements Theorem?
If 2 angles are supplementary to congruent angles (or to the same angle), then they are congruent.
What is the congruent supplements theorem?