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Surface Area of a Cylinder Using a Net

Surface Area of a Cylinder Using a Net
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2017-08-03 05:15
CircleSolid GeometryGeometric Construction
This example demonstrates how to calculate the surface area of a cylinder by unfolding its side. Key mathematical concepts include the geometric properties of a cylinder and area calculation. Commands used include Circle, Point, Segment, Polygon, Intersect, and Rotate. Suitable for middle and high school students learning solid geometry and area calculation.

GeoGebra Commands & Parameters

  1. Circle(A, 1) → c
  2. Point(c) → G
  3. Segment(A, G) → b
  4. Polygon(D, C, F, E) → poly1, d, c_1, f, e
  5. Point(yAxis) → B
  6. Intersect(f, yAxis) → H
  7. Circle(B, H) → g
  8. Intersect(c, xAxis) → I,
  9. Rotate(I, (-r), A) → I'