 
 <translate> 189. The inside dimensions of a rectangular wooden box
are 12 inches by 14 inches by 16 inches. A cylindrical
canister is to be placed inside the box so that it stands
upright when the closed box rests on one of its six
faces. Of all such canisters that could be used, what is
the radius, in inches, of the one that has maximum
volume?
Options:
(A)  3
(B)  4
(C)  5
(D)  6
(E)  7 Hmmm, my stream of consciousness: <hau> Shekara ta 189. Girman ciki na akwati na katako na rectangular 12 inci ne da 14 inci da 16 inci. A cylindrical Za a sanya canister a cikin akwatin don ya tsaya tsaye a lokacin da rufe akwatin ya ta'allaka ne a kan daya daga cikin shida fuskokin. Daga cikin irin wadannan gwangwani da za a iya amfani da su, wanne ne radius, a inci, na wanda yana da matsakaicin ƙarar? Zaɓuɓɓuka: (A) 3 (B) 4 (C) 5 (D) 6 (E) 7 Hmmm, rafi na sani: 