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Cylinder: Cut horizontally
Cylinder: Cut vertically
Horizontal cross-section Vertical cross-section
Cone: Cut horizontally Horizontal cross-section
Cone: Cut vertically Vertical cross-section
Watermelon: Vertical cross-section
Cut horizontally Horizontal cross-section Watermelon:
Cut Vertically
Viewing an Object by Shadow Play
We are familiar with shadow. Have you seen a shadow play?
Do you ever observe your shadow during the morning, afternoon, and evening?
Morning time At noon Evening time
271 Visualising Solid Shapes
