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      Question

      The capacity of a cylinder tank is 8316 cm3 .

      If the radius of its base is 21 cm, then find the depth of the tank.
      A 4 cm Correct Answer Incorrect Answer
      B 8 cm Correct Answer Incorrect Answer
      C 10 cm Correct Answer Incorrect Answer
      D 6 cm Correct Answer Incorrect Answer

      Solution

      ATQ,

      V = Ο€rΒ²h = (22/7) Γ— 21Β² Γ— h = (22/7) Γ— 441 Γ— h = 1386h 8316 = 1386h β‡’ h = 8316 Γ· 1386 = 6 cm

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