Describe all situation where vertical angles are also supplementary

if  vertical angles are right angles  then the angles are supplementary.

Step-by-step explanation:

Vertical angles: When two lines are intersect to each other then the opposite angles made at the point of intersection are called vertical angles.

Vertical angles are always equal in measurement.

Supplementary angles: The angles whose sum is 180 degrees are called supplementary angle.

Let x and y are vertical angles

Then, x=y

If angles x and y are supplementary

When x and y=90 degrees then the angle x and y are supplementary.

Therefore, we can say that if vertical angles are right angles  then the angles are supplementary.

c. prove the lengths are the same.

step-by-step explanation:

you need to prove the segments are congruent. congruent segments have the same length. find the lengths of the segments using the distance formula, and compare them.

answer: c. prove the lengths are the same.