Acyclist accelerates from 0m/s to 8m/s in 3 seconds what is his acceleration? is this acceleration higher then that of a car which accelerates from 0 to 30m/s in 8 seconds?

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.

I’m stuck on this equation, anyone got the answer?

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?