Answer
A=288-72$\pi$
Work Step by Step
h=2r=12
b=4r=24
A=(12)(24)-2$\pi$6$^2$
A=288-72$\pi$
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.