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Geometry

Question
Find the lateral surface area of a right circular cone generated by the line segment through the origin and the point (h,r), where h denotes the height of the cone and r is the radius of its base, revolving around the x-axis

Answer
πrl

Fact
The diagonals of a parallelogram bisect each other.
The diagonal of a rhombus bisect each other at right angles.

Horizontal and Vertical Asymptotes

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