[Q. ] OG edition 13 page 47
第五題
5. Aclosed cylindrical tank contains 36-rc cubic feet of
water and is filled to half its capacity. When the tank is
placed upright on its circular base on level ground, the
height of the water in the tank is 2 feet. When the tank
is placed on its side on level ground, what is the
height, in feet, of the surface of the water above the
ground?
(A) 2
(B) 3
(C) 4
(D) 6
(E) 9
Ans: (C)
想問一下瓶內已經有36 ft3的水量，水高有2 ft
用容積的算式應該是半徑約根號18
選項似乎沒有這個 有點混亂 麻煩各位大大解讀一下^^
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