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Mathematics 13 Online
OpenStudy (anonymous):

how to find projection of conical surface lying along z axis on the xy plane ?????????????

OpenStudy (jtvatsim):

Think of shining a light down the z axis. If you have a cone, and shine a light on the very top, what kind of shadow will it cast? A circle. So the projection of a conical surface lying along the z axis is a circle on the xy plane (assuming you mean that the tip of the cone is on the z axis).

OpenStudy (anonymous):

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