NOMOR 34 AND 35 APA GAESSSSSS

34
V = tabung - kerucut
    = (pi x r x r x t) - (1/3 x pi x r x r x t)
    = (1 - 1/3)(pi x r x r x t)
    = 2/3 x (pi x 9 x 9 x 18)
    =  972 [tex] \pi [/tex] cm3

35.
r = 1/2 d = 1/2 x 20 = 10
s = 26 (phytagoras 24 dan 10)
L = Lselimut + L 1/2 bola
   = (pi x r x s) + (1/2 x 4 x pi x r x r)
   = (pi x 10 x 26) + (2 x pi x 10 x 10)
   = 260 pi + 200 pi
   = 460 pi cm2   (B)



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