Question

Help? easy,

Answer 1

The first one is convex, its angle measure aren't the same but its sides are congruent.
The problem with the second one is that even though its angles are congruent, all its sides aren't

Answer 2

Solution A is concave. The Legs are not the same length as well. The second one has the same angles but not the same size legs.

Answer 3

Sorry,I meant concave not convex

Answer 4

what about student b?

Answer 5

The second one has the same angles but not the same size legs.