I am willing to do the work. I want to learn. I will upload document + my personal answers. I will help you in anyway I can!

Question

alexandervonhumboldt2 · Answer

here

yoongilife · Answer

I have asked three questions, but could we focus on them one at a time, please?

alexandervonhumboldt2 · Answer

ok

alexandervonhumboldt2 · Answer

1st. correct   but also AD=DC maybe for the 3 sub-question

alexandervonhumboldt2 · Answer

2nd question
correct
correct
correct

alexandervonhumboldt2 · Answer

3rd. Correct

alexandervonhumboldt2 · Answer

i'm not sure for the 1st one.

thesmartone · Answer

The first one looks correct to me :)

alexandervonhumboldt2 · Answer

shouldn't you need to list all of the corresponding sides?

alexandervonhumboldt2 · Answer

*parts

yoongilife · Answer

Sorry, my computer is acting up. The first question you recommend also using AD = DC. I'm just trying to learn, why!

alexandervonhumboldt2 · Answer

AD and DC are also corresponding sides

alexandervonhumboldt2 · Answer

|dw:1449950102891:dw|

thesmartone · Answer

Because if AB = BC, and they both share BD, then if we plug it in to the pythagorean theorem, they would have the same hypotenuse. So AD = CD

alexandervonhumboldt2 · Answer

also i would list all corresponding parts:
all 3 pairs of angles and all 3 pairs of sides =]

yoongilife · Answer

Ok, that is what I was trying to ask, what theory? Which you have noted to be the Pythagorean theorem. I agree with the addition of AD = CD so I will add that to my answer.