Answer:
Which ever answer says 20. I think it is C
Step-by-step explanation:
The diagram shows that there are 3 angles that make up 90 degrees.
x + x + 50 = 90 Combine like terms on the left
2x + 50 = 90 Subtract 50 from both sides.
- 50 -50
2x = 40 Divide by 2
2x/2 = 40/2
x = 20
