Answer:
Supplementary Angles
Adjacent Angles
Step-by-step explanation:
Angles 1 and 2 share a vertex and form a straight line. These angles are called supplementary angles. They add to 180 degrees and form a straight line. They are adjacent as well because they share a vertex and side.
first one c and the second on b
Just taking my points back
30
45+45 = 90
150-90 = 60
60/2 = 30
I think...
a = d/2b - 2/b
2ab+4=d
2ab=d-4
a= d/2b - 4/2b
