The following applet can be used to explore the net of a Cone and it's surface area formula.Use slider to change the radius of the base and slider h to change height of the cone. Finally use the Net slider or press the play button to show how the cone unraps into its net.
Strand: 3. Geometry & Trigonometry
Strand unit: 2. 2D Shapes and 3D Solids
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