So ∠ 1= 15 degrees (equal to the vertex angle)

Because ∠ 1+∠2= 180 degrees (the definition of a right angle).

So ∠2= 180 degrees -∠ 1= 165 degrees (the nature of the equation).

So ∠2/∠ 1= 165 degrees/15 degrees = 1 1.

Answer: The degree of angle 2 is 1 of angle 1 1 times.