Question 311001
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.