volume sebuah tabung 88,704 cm3.jika tinggi 36 cm hitunglah : a.panjang jari-jari tabung. b.dan luas selimutnya

Cylinder.

V = πr²t
r = √[V / (πt)]
   = √[88704 cm³ / (22/7 × 36 cm)] = 28 cm

L = 2πrt
   = 2(22/7)(28 cm)(36 cm) = 6336 cm²

a. V. Tabung = Π×r²×t
88.704 = 3.14 × r² × 36
88.704 = 113,04 × r²
r² = 88.704÷113,04
r² = 784
r = 28 cm

b. Luas selimut = 2×Π×r×t
= 2×22/7×28×36
= 6.336 cm²

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