volumes (washer/disk method)

Question

A graphing calculator is recommended.

Use technology to find the volume of the solid obtained by rotating the region bounded by the given curve about the specified line. (Round your answers to five decimal places.)

x² + 16y² = 16

a) about y = 4: b) about x = 4: I tried solving this question but I get stuck in the process so I would appreciate the help.

Answer 1

desmos.com/calculator/vlfnjfhrez