Question

two angles of a triangle measure 45 degrees and 90 degrees what is the third angle measure

Answer 1

45 degrees. That is a right triangle (90 degrees, 45 degrees and 45 degrees).

Answer 2

45 degrees because a triangle is 180 degrees all around, and if u have a 90 degree angle and 45 degree angle you would add the two angles given then subtract from 180 degrees.