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Perplex
Dashboard
Topics
Exponents & LogarithmsApproximations & ErrorSequences & SeriesMatricesComplex NumbersFinancial Mathematics
Cartesian plane & linesFunction TheoryModellingTransformations & asymptotes
2D & 3D GeometryVoronoi DiagramsTrig equations & identitiesVectorsGraph Theory
ProbabilityDescriptive StatisticsBivariate StatisticsDistributions & Random VariablesInference & Hypotheses
DifferentiationIntegrationDifferential Equations
Review VideosFormula BookletMy Progress
BlogLanding Page
Sign UpLogin
Perplex
IB Math AIHL
/
2D & 3D Geometry
/
Problem Bank
IB Math AIHL
/
2D & 3D Geometry
/
Problem Bank

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[Maximum mark: 4]

A spherical white blood cell appears as a circle with circumference ​6π×10−5m.

  1. Write down the radius of the cell.

    [1]
    Part (a):
    r=m
  2. Find the volume of the cell, giving your answer in the form ​π(a×10k)m3, where ​a<10​ and ​k∈Z.

    [3]
[Maximum mark: 4]

A spherical white blood cell appears as a circle with circumference ​6π×10−5m.

  1. Write down the radius of the cell.

    [1]
    Part (a):
    r=m
  2. Find the volume of the cell, giving your answer in the form ​π(a×10k)m3, where ​a<10​ and ​k∈Z.

    [3]