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

The 3rd angle is 62 degrees because the 3 angles in a triangle need to add up to 180 degrees.

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

Answer:

the 3rd angle measure if the other two angles are 45 ° and 73 ° is:

x = 62 degrees