Find 3 uppercase letters that look the same when rotated 180 degrees.Then,what letter's 90,180,270 degree rotations has this outline?This is also the inside lines formed by the rotation of what letter?

Answer 1

180 degrees: H, I, O
Since you don't show "this" outline or "the inside lines", I can't help you with the other two.

Answer 2

and N

Answer 3

you can ust repesent a variable to the problem& you just find it easier with a variable