Difference between revisions of "Right cone"
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| + | <h3>Definition</h3> | ||
A '''right cone''' is a [[cone]] in which the [[line]] joining the [[vertex]] to the [[center]] of the [[base]] is [[perpendicular]] to the [[plane]] of the base. | A '''right cone''' is a [[cone]] in which the [[line]] joining the [[vertex]] to the [[center]] of the [[base]] is [[perpendicular]] to the [[plane]] of the base. | ||
| − | + | <h3>What exactly defines a cone?</h3> | |
| − | [[ | + | A cone has two important defining features: a base, and a [[slant height]] that is equal, from any point on the base. Generally, a "cone" is defined as a right, circular cone. |
| − | [[ | + | |
| + | <h3>What is so special about right cones?</h3> | ||
| + | Right cones have a height that is perpendicular to the base. This makes the volume easy to calculate. | ||
| + | |||
| + | <h3>What about the "lateral surface area"? What's that?</h3> | ||
| + | The lateral surface area is a fancy name for the surface area of a cone, without the base. The lateral surface area can be found by calculating what [[proportion]] of a circle with radius of the slant height makes up the cone. | ||
Latest revision as of 15:52, 19 February 2024
Contents
Definition
A right cone is a cone in which the line joining the vertex to the center of the base is perpendicular to the plane of the base.
What exactly defines a cone?
A cone has two important defining features: a base, and a slant height that is equal, from any point on the base. Generally, a "cone" is defined as a right, circular cone.
What is so special about right cones?
Right cones have a height that is perpendicular to the base. This makes the volume easy to calculate.
What about the "lateral surface area"? What's that?
The lateral surface area is a fancy name for the surface area of a cone, without the base. The lateral surface area can be found by calculating what proportion of a circle with radius of the slant height makes up the cone.
