What is meant by the vertical angle of a cone ............. e.g. if I say that the vertical angle of a cone ABC ( with A at the top) is 30 degree then, which angle will be 30 degree.......... answer soon .....thanx !!! : )

yes...... since other 2 angles are base angles...... !!

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Guitars R0ck answered this

thanx

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Avadh Prabhakar.t answered this

The angle where the height of the cone meet is the vertical angle.

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Ram answered this

Cut a plane perpendicular to the base and through the center of base circle, then the angle between the slant height line and the height line is the vertical angle.