Question | Answer |
A midpoint divides a line segment into ______________ ________ _________. | Two congruent parts. |
A bisector divides a line segment into ___________ __________ ________. | Two congruent parts. |
A bisector divides an angle into ____________ __________ ____________. | Two congruent angles. |
If two angles form a right angle, then they are _____________. | Complementary. |
If two angles form a linear pair, then they are ____________. | Supplementary. |
Interesting lines form __________ ___________. | Vertical angles. |
Vertical angles are ____________. | Congruent. |
An altitude in a triangle is _______________ to the side it intersects. | Perpendicular. |
Perpendicular lines form ________ ___________. | Right angles. |
All right angles are ______________. | Congruent. |
A median in a triangle __________ the side it intersects. | Bisects. |
Supplements of congruent angles are ____________. | Congruent. |
Complements of congruent angles are ______________. | Congruent. |
In a triangle, the measure of an exterior angle is equal to the sum of the measures of _________ ___________ ___________. | Remote interior angles. |
If two sides of a triangle are congruent, then the angles opposite them are ________________. | Congruent. |
If two angles of a triangle are congruent, then the sides opposite them are _____________. | Congruent. |
If two parallel lines are cut by a transversal, then corresponding are __________. | Congruent. |
If two parallel line are cut by a transversal, then alternate interior angles are ______________. | Congruent. |
If two parallel lines are cut by a transversal, then alternate exterior angles are _____________. | Congruent. |
If two lines are cut by a transversal and the alternate interior angles are congruent, then the lines are ___________________. | Parallel. |
If two lines are cut by a transversal and the alternate exterior angles are congruent, then the lines are _____________. | Parallel. |
If two lines are cut by a transversal and the corresponding angles are congruent, then the lines are _______________. | Parallel. |
If two lines are cut by a transversal and the same side interior angles are supplementary, then the lines are ______________. | Parallel. |
If a triangle has two congruent sides, it is _______________. | Isosceles. |
If a triangle has two congruent angles, then it is _____________. | Isosceles. |
If a triangle is isosceles, then the base angles are ______________. | Congruent. |
If a triangle is isosceles, then the legs are _____________. | Congruent. |
AB=AB. | Reflexive property. |
If AB=BC and BC=EF, then AB=EF. | Transitive property. |
If OA=AB, then AB=OA. | Symmetric property. |
If AB=DF and BC = CD, then AB-BC=DF-CD. | Subtraction property. |
If AB=DF and BC=CD, then AB + BC= DF + CD. | Addition property. |
DE + CD = CE and CD= AB, then DE + AB = CE. | Substitution property. |