Question

Tinggi sebuah kerucut 12cm apabila volume kerucut =64cm³maka jari kerucut adalah

Answer 1

Verified answer

V = 1/3 phi r^2 t
64cm³ = 1/3 × 22/7 × r^2 × 12
64 × 3 × 7 = 22 × 12 × r^2
1344 = 264 × r^2
r^2 = 1344/264
r^2 = 5.1
r = √5,1 = 2,25 cm

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