In a triangle, what is the 3rd angle measure if the other two angles are 45° and 73°?

The measure of the angles of a triangle add up to 180 degrees.
 Therefore, for this case we have the following equation:
 45 + 73 + x = 180
 Where,
 x: is the unknown angle
 Clearing x we have:
 x = 180-45-73
 x = 62 degrees
 
 the 3rd angle measure if the other two angles are 45 ° and 73 ° is:
 x = 62 degrees