CB is perpendicular to AD at B between A and D. BCA = BCD and AC = DC. Which congruency statements (HL, AAS, ASA, SAS, and SSS) can you use to conclude that ABC = DBC?

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.

Yes the slope to this is -5