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Measurement and Dimensional Analysis · Term 2

Surface Area of Spheres

Students will apply the formula to calculate the surface area of spheres and hemispheres.

Key Questions

  1. Explain the derivation of the surface area formula for a sphere (conceptual).
  2. Predict how doubling the radius of a sphere affects its surface area.
  3. Compare the surface area of a sphere to that of a cylinder that perfectly encloses it.

Ontario Curriculum Expectations

CCSS.MATH.CONTENT.HSG.GMD.A.4
Grade: Grade 9
Subject: Mathematics
Unit: Measurement and Dimensional Analysis
Period: Term 2

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