Originally Posted by

**crazy4wdracer** Hi guys, I'm in 10th grade and I'm in need of some help with Geometry.

Two angles that are congruent are (**sometimes**, always, or never) complementary to the same angle. The angles could be obtuse or right and therefore, have no complement.

Two angles that are complementary to the same angle are (sometimes, **always** or never) congruent.

Two angles that are vertical are (sometimes, **always**, or never) nonadjacent.

Two angles that are nonadjacent are (**sometimes**, always , or never) vertical.

Two angles that are complementary (sometimes, always, never) form a right angle. Ambiguous. They **always** add up to 90 degrees, but they may be 2 separate nonadjacent angles.

Two angles that form a right angle are (sometimes, **always**, never) complementary.

Two angles that form a linear pair are (**sometimes**, always, never) congruent. Only 90 degree linear pairs are congruent.

Two angles that are supplementary are (**sometimes**, always, never) congruent. Only if the angles are 90 degrees each

Two angles that are supplementary are (sometimes, always , **never**) complementary.

Two right angles are (sometimes, **always**, never) supplementary.

Vertical angles are (**sometimes**, always, never) complementary.

Angles with a common side and a common vertex (**sometimes**, always, never) form a linear pair. True only when their sum is 180. Two acute angles could have a common side and a common vertex and not form a linear pair.

Thanks in advance for the help guys!!!