If the cross-section of a greenhouse roof is in the shape of a segment of a circle with the dimensions given, what area of plastic is needed to cover the roof and both end walls?
(A) $160\pi + \frac{128\pi}{3} - 32\sqrt{3} $
(B) $320\pi + \frac{128\pi}{3} - 16 \sqrt 3 $
(C) $160\pi + 128\pi - 32\sqrt 3 $
(D) $640\pi + \frac{128\pi}{3} - 32 \sqrt 3 $
(E) $160\pi + \frac{128\pi}{3} - 16\sqrt 2 $
[images]SolidGeometry2-28.jpg
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