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= 5,3
luas bangun = 2π1/2dt + π1/2ds
= 2.22/7.1/2.7.3 + 22/7.1/2.7.5.3
= 66 + 58,3
= 124,3 cm²
total = 124,3.7000
= Rp.870100 / cm²
s² = 7² + (7/2)²
= 49 + 49/4
= (196 + 49)4
s =√245/4
s = 7/2√5
r = 7/2
L.sk = 22/7(7/2)(7/2√5)
= 84,7 m²
L.selimut tabung = K.alas x t
K.alas = 2(22/7)(7/2)
= 22
L.st = 22(3)
= 66
luas tenda = 84,7 + 66 = 150,7m²
Harga Terpal 150,7 x Rp. 7.000 = Rp. 1.054.900