Why do i need to learn this? Proofs: prove it's a triangle me: what does this have to do with anything logic: is this true or false? me: this is just common sense! WHY ARE YOU TRYING TO TEACH 10th GRADERS COMMON SENSE?!?! i just feel like... so m any things that i learn in highschool... wont even matter when i try to get a job... (add more to the list)