Answer:
a is true and becomes complimentary as they both add up to 90 degree.
b. is true it is the only vertical angle group. As points AE, and BD cross and create these angles.
c is supplementary as both 3,4 together add up to 180
but each of these do not fit other description, as 5,1 would be also supplementary if 2 was in that group.
Step-by-step explanation:
Points 3, 4 as a group and 3,2,1 as a group and 2,1,5 as a group are each supplementary as each group add up to 180 degree. 1,5 on its own is not supplementary
Points 2 is complimentary on its own and also 1,5 combined are complimentary so this is true and 1,5 on its own as a group is complimentary.
Points 3,5 become vertical angles as a group.
Angles A:B + D:E are also vertical angles this shows points 1,2 and 4 as a group of vertical angles.
Vertical Angles are the angles opposite each other when two lines cross. "Vertical" in this case means they share the same Vertex (corner point), not the usual meaning of up-down
