Answer:
x = - 12, 3
Step-by-step explanation:
By tangent secant theorem:

Answer:
C
Step-by-step explanation:
Answer :The first one
Step-by-step explanation:
Answer:
40, 60 and 80 degrees.
Step-by-step explanation:
Let the smallest angle be x degrees. Then:
The 3 angles are x, x + 40 and x + 20.
As there are 180 degrees in a triangle:
x + x + 40 + x + 20 = 180
3x = 180 -40--20 = 120
x = 40 degrees.
The other 2 angles are 60 and 80 degrees.