The primary purpose of these stage directions (with the gallantry of a young politician) is to indicate a character's tone of voice.
Given that he is referring to the ladies, he has to change the tone of his voice a bit to appeal to them more. He cannot speak in a manly voice which he would normally use while speaking to other men, but rather appear more suave and gentleman-like.
A: The triangles are similar. We know this because of the AA similarity theorem. Angle C and F are both right angles. All right triangles are congruent (Definition of Right Angle) Angle BDC is congruent to angle EDF(Reflexive Property)
B: BC<span> corresponds</span> to EF. This is known because BD is part of ED making them correspond and DC is a part of DF making them correspond. Leaving BC and EF(there are many reasons for it).
C: Angle C corresponds to angle F because 1 they are both right angles and 2 See answer B.
Answer:
I believe it would be the Union (Northern States) and the Confederacy (Southern States), but as you didn't provide the text this is based off of, I'm not sure.
Jay was not strong enough under the pressure of Toms hard exterior and the whole secret was like the elephant in the room where everyone knew but wasn't speaking of it as nick observed