LogFAQs > #978774934

I got a minor in Math and took up to calc 5 in college but I don't know how she got that so fast >_> (probably cuz I forgot a lot of shit lol). I know the smaller and bigger triangles are isosceles and 2 of the angles must be equal, so the smaller one has angles of 50-50-80 while the bigger one's pair must be >50 with the top one being <80. And iirc all 4 sided shapes must equal 360 degrees, so one of the angles for that arrow shape must be 280 since it's opposite of the 80 tip of the smaller isosceles, so the remaining 3 angles must equal 80.

But how did she deduce the other angles? >_> I'm trying to figure out the path to victory here but I'm forgetting how cuz I went to stupid American colleges instead of smart Japanese colleges.