Answer: Right,
adjacent,
supplementary.
Step-by-step explanation: We are given two angles < 1 and < 2.
We need to explain which vocabulary words would be used for angles < 1 and < 2.
We can see, that both angles <1 and 2 are of 90 ° angles because other shown angle is also 90 degree angle.
Therefore, < 1 and < 2 are Right Angles.
< 1 and < 2 are sharing common side therefore, those are adjacent angles.
Because < 1 and < 2 are both of 90 degree. Therefore, their sum is equal to 180 degree.
Therefore, < 1 and < 2 are supplementary angles.