Answer:
16. Angle 2 is 30° and angles 1 & 3 are 150°
17. Equilateral (all sides are equal)
18. A, B, D
19. A, B. (8 angles and all sides are congruent)
20. False.
Step-by-step explanation:
angle 2 is a corresponding (ish) angle to the one marked 30°, so they are the same. and then the other angle is supplementary to the 30° one, therefore they must add up to 180 degrees. 180-30= 150 so that is angle 1 and 3.
