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IB Mathematics: Applications and Interpretation HL · AHL 3: Further Integration · AHL 3.9

Volumes of revolution about the y-axis Problem set A Answers

Skills

  1. \(81\pi\) = 254

  2. \(\frac{15\pi}{2}\) = 23.6

  3. 2.20

  4. 131

    1. (a) 2.77
    2. (b) \(3\pi\) = 9.42

  6. \(27\pi\) = 84.8

In context

  1. \(64\pi\) = 201

  2. \(12\pi\) = 37.7

    1. (a) 0.453 litres
    2. (b) 16.6 cm

Stretch

  1. \(\frac{136\pi}{15}\) = 28.5

  2. k = 2.38

jmaths.xyz · AI HL · AHL 3.9 Volumes of revolution about the y-axis