Hi guys not sure were this goes sorry... It's been a while sense I have taken geometry so my skills are a little rusty... It tunrs out that I need to prove that the angles in a right tranlge add up to 180 I have looked on the internet and people just tell me oh this angle and that angle are complementary However this does me no good as I no longer know how to prove that two angles are complementary I do remeber what it means just don't remeber how to prove it... so if you could point me to a proof for right triangles that the sum of all of its angles is 180 that would be great please tell me in statement reason format because just telling me two angles are complementary wont tell me anything becasue I don't remeber how to prove why two angles are complementary but I still remeber what it means... Thanks guys!!!