SOLUTION: what is the volume of a mailbox if the mailbox is thought of as a half cylinder plus a rectangular solid. The heigth of the half cylinder is 4 inches the width is 8 inches and the

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Question 311001: what is the volume of a mailbox if the mailbox is thought of as a half cylinder plus a rectangular solid. The heigth of the half cylinder is 4 inches the width is 8 inches and the length is 20 inches. The heigth of the rectangle is 5 inches the wideth is 8 inches and the length is 20 inches?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
V=BASE+SEMICIRCLE TOP.
V=5*8*20+(3.14*4^2*20)/2
V=800+(3.14*16*20)/2
V=800+(50.24*20)/2
V=800+1,004.8/2
V=800+502.4
V=1,302.4 ANS. FOR THE VOLUME OF THE MAILBOX.