What does 154 mean in your question?
I assume your room is a square. If so, each corner of the room has a 90 degree angle for a total of 360 degrees.
The angle that is repeated, I assumed based on your obscure question, is 90 degrees.
So, x = 90 degrees.
Answer:
linear pairs are always 180 degree.
Step-by-step explanation:
sample: x + 30° + 20° = 180°
x = 180° - 50°
x = 130°
Answer - u = 4.8989
u ^ 2 = 24
u = sqrt (24)
u = 4.8989
Answer: 8
That is your answer