Answer:
3/16
Step-by-step explanation:

Option ( C ) is the correct answer.
Answer:
Step-by-step explanation:
∠CBA + ∠ABD = 180 {linear pair}
2x - 6 + x +1 = 180
3x -5 = 180
3x = 180 +5
3x = 185
x = 185/3
x = 61 2/3

Any irrational number will remain irrational when multiplied by a rational number.
<u>Answer: Any irrational number.</u> (Like pi or the sqr of 2.)