For this case we must indicate the cosine of A, of the figure shown. By definition:

Substituting the values we have:

So, we have to:

Answer:
Option D
Step-by-step explanation:
use the slope formula
y2-y1 / x2-x1
V=(pi)(2r^2)(h)
V=4(pi)(r^2)(h)
V=4(100 aka the old volume)
V=400cm^3
When solving anproblem including money a negative answer can represent debt (how much you owe)