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Mathematics 19 Online
Comerpickles:

http://prntscr.com/icjisn who here is good at math?

Comerpickles:

@Ultrilliam

Ultrilliam:

it appears @shadow is the only one online right now

Comerpickles:

@Shadow

Ultrilliam:

@563blackghost <-- forgot about her

563blackghost:

What answer do you think it is @Comerpickles

Comerpickles:

I was thinking D, but wasn't sure

563blackghost:

We we have given of two sides that are equal to each other, and we find that two angles are equal as well, but progressing in the chart we prove two other angles (not sides) so it would not be by SAS congruency. It would be `AA Similarity Postulate` with the proving of \(\bf{\angle A \cong \angle A}\) and \(\bf{\angle ACD \cong \angle ABE}\) as well as \(\bf{\angle ADC \cong \angle AEB}\) we see that two angles have been proven equal to two other angles. If they are equal then the last angle is concluded to be equal as well.

Comerpickles:

Okay, thanks sir. Can you help with this one also? Last one http://prntscr.com/icjpjv

563blackghost:

she* ;) let meh look at it...

Comerpickles:

Ohhhh, apologies

563blackghost:

its okie :3

563blackghost:

Angles that are across from each other are congruent by `Vertical Angle Theorem`. \(\large\bf{\angle 1 ~and~ \angle 4}\) are vertical angles, so they are congruent. Angles that lie on the same side of the transversal are congruent as well. This is proven by `Corresponding Angles Postulate`. \(\large\bf{\angle 1 ~and~ \angle 5}\) lie on the same side of the transversal, so they are congruent to each other. It would be `A`.

Comerpickles:

Thank you Ma'am

563blackghost:

np :D

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