Answer:
x y
7 4
2 3
7 5
Step-by-step explanation:
it cant be a function if it has two of the same domains.
Recall that the interior angles of a quadrilateral add up to 360 degrees.
1) Let x be the measure of the missing angle, then we can set the following equation:

Solving for x we get:

2) Let y be the measure of the missing angle, then we can set the following equation:

Solving for y we get:

Answer:
1) 100 degrees.
2) 58 degrees.
The angle of pi over 2 radians is 90 degrees.