Answer:
A&C = 68° B = 112°
Step-by-step explanation:
because 180° - 122° = 68°
B = 0.5A + 30
C = 1.5A + 20
If B = C, that means we can set the two equations equal to each other.
0.5A + 30 = 1.5A + 20
A = 10... Plug that into one of the equations to find B or C (they are the same)..
B = 0.5 * 10 + 30 = 35
35 + 35 + 10 = 80 total.
Answer:
Yes
Step-by-step explanation:
This is a paralleogram. The diagonals bisect each other