Please help me with all thank you I’ll mark please number answers

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?

State if the two triangles are congruent. if they are, state how you know?

Me d is also an option but i couldn't get it in the picture