The first one because it’s the actual formula for a sphere and it has pie at the end because we are solving for a sphere
Answer:
skew
Step-by-step explanation:
Perpendicular lines must intersect. In fact, they intersect forming right angles.
Lines AC and RC are not in the same plane and do not intersect.
They are called "skew lines."
Answer:
the answer is b
Step-by-step explanation:
brainliest pls
