Q:
# How many vertices does a cone have?

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### Quick Answer

**A cone does not have a vertex.** A vertex is defined as a point where two lines meet; a triangle has three vertices, and the angular face of a pyramid has a vertex. However, a cone is a three-dimensional figure and has a curved surface.

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The base of a cone is circular. The top of the cone is a single point called the apex of the cone. A right circular cone is formed when the apex lies exactly beneath the center of the circular base. In such a case, the angle formed at the center of the base is a right angle. The area of the cone is the sum of the areas of the base and the curved surface.

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Q:
## How many lines of symmetry does a decagon have?

A:A regular decagon has 10 lines of symmetry, one line drawn through each vertex and one line drawn through the midpoint of each edge. A line of symmetry indicates where a polygon can be folded in half to form two equal shapes.

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Q:
## What is the point where the sides meet in a polygon?

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Full Answer >**The point where the sides of a polygon meet is called the vertex.**A polygon is a closed plane figure with three or more sides.Filed Under: -
Q:
## How many triangles are in an octagon?

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Full Answer >**In an octagon, there are six triangles formed when diagonals are drawn from each vertex.**An octagon is a figure that consists of eight straight sides, and it can be either regular or irregular polygons. While irregular octagons do not have sides of equal length, regular octagons do.Filed Under: -
Q:
## What is the definition of the "altitude of a triangle"?

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Full Answer >**The altitude of a triangle is defined as the line drawn from the vertex of a triangle and perpendicular to the opposite side of the triangle.**A triangle has three sides and three vertices. Hence, it has three altitudes.Filed Under: