Please help!!! This is a finals test and I’m timed I’ll give points + brainalist please help a brother out (:

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Ineed with number 6 , explain how to get 1978