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299) circular cylinder straight greater possible surface.

Answer R = 50/(2pi-1) H= 100(pi-1)/(2pi-1)

301) rectangular box of square base of greater surface area.

Answer Length 300/7

width Lado 100/7

There are this formula in my book

299) a = 2piRH

H = 100 -2piR

But I dont get the book answer R = 25/pi

301) H = 100 -2piR

and a = 2pirh +2pir

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