At around 20'000ft. and higher.
Ok im here to help the answer is B 16x + 9 = 4x
I’m pretty sure it’s 6 bc to calculate the volume it’s pie•radius^2
It is false
when you imagine or draw the picture of the polygon and try to cut into halves diagonally you'll get an uneven amount of piece
i hoped I helped and plz give me brainlist