In the derivation of the formula for volume of a sphere, we started with a cylinder with two cones inside. Imagine passing a horizontal plane through the figure, creating radius b, as shown below.

What is the cross-sectional area of the shaded ring?

πb2 – πr2, or π(b2 – r2)
πb2 + πr2, or π(b2 + r2)
πr2 – πb2, or π(r2 – b2)
πr2 + πb2, or 2π(r2 + b2)

Pleasse me i need an answer. give me the correct answer. answer if you know it ! the club will base its decision about whether to increase the budget for the indoor rock climbing facility on the analysis of its usage. the decision to increase the budget will depend on whether members are using the indoor facility at least two times a week. use the best measure of center for both data sets to determine whether the club should increase the budget. assume there are four weeks in a month. if you think the data is inconclusive, explain why.