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What's on the worksheet
- Name the cut each plane makes in the double cone.
- A double cone with a vertical axis has half-angle 30°.
- A double cone has half-angle 30°.
- A plane that misses the vertex of a double cone and makes 54° with its axis cuts a parabola.
- In a side view a double cone is the pair of lines y = x and y = -x, with the vertex at the origin and the axis along the y-axis.
- A double cone has half-angle 40°.
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The free lesson teaches it with worked examples and practice problems.
Conic sections from a double cone: the lesson ›More Chapter 10 worksheets: Conic sections
- 10.1Equation of a circle
- 10.2Finding the center and radius
- 10.3Conic sections from a double cone
- 10.4Focus and directrix
- 10.5The parabola as a locus
- 10.6The ellipse
- 10.7The hyperbola
- 10.8Identifying and translating conics