Answer:
3rd angle = 74
Step-by-step explanation:
Remark
All triangles have 180 degrees.
In addition a right triangle has 1 angle that equals 90 degrees.
That means the other 2 must add to 90.
Givens
1 angle = 90
1 angle = 16
3rd angle = x
Solution
x + 16 + 90 = 180 Sum 3 angles to 180 degrees. Combine
x + 106 = 180 Subtract 106 from both sides.
x = 180 - 106 Combine
Answer: x = 74
