X = 60 degrees.
A triangle is 180 degrees one side is 30 degrees, and another is 90(right angle)
180 - 30 - 90 = 60
Answer:
I think it's C a triangular pyramid.
Answer: no
Step-by-step explanation:
Answer:
15. A
16. B
17. B
18. C
Step-by-step explanation:
84,000,108 is in standard
