Answer
a) $90\pi$
b) $90\pi$
Work Step by Step
a) The radius is 5, and the height is 9, so we obtain:
$A = 2\pi rh = 2\pi (5)(9) = 90\pi$
b) The radius is 9, and the height is 5, so we obtain:
$A = 2\pi rh = 2\pi (9)(5) = 90\pi$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.