1 4 ".\r+ ,9ijkx3JlCmnopbcqrsE,\r180:4=405-1803\r180x=4x225\rx=900+180\rx=5\r29-14 ,ijk5h?nopbcqrst\r+ #3.14x40+22x50=62800 u v =62.8 F " , 62.8x0.85=53.38 xy\n.\r30-1. 4 ,C\z{b|}z53.38x~\r+ :150*=15000®*. 0 =\r@P 0\r25 : 15000=1: 600,\rFA,15+
=9000@=90@\nB\rE&G,150x90=13500>?@\n.\r31-1. 4 ,>&F;1: 600 #E135 ? @\r2 3 2 6\r1-40% x 2 3 = - X - =\r+ 5 5\r25\r3 3 9\r#1-40% x 3 3 X 5一 =\r2 + 3 25\rK/U # 24+ P - \nX40%=80 Pxy\rU J 4 J\r32-1 ,F > \r+ :500\r2.43%x2\r=12.15x2\r=24.3 Z\r500x225%xi=iL25 Z\r500+11.25x2J5%xl+1125\r=51125*225%+11.25\r11.50+1125\r=22.75\r24.3 >22.75\r33-14 ,N .\r! 1 4 " 14 "