A pyramid is a polyhedron whose base is a closed polygon with any number of sides and other faces are triangles with a common vertex. If all corners. of a polygon are joined to a point not lying in its plane, we get a pyramid.
The figure above shows a pyramid. The base of this prism is the quadrilateral and the lateral faces are triangles.
Which of the following statements are true: 1.Vertex: The common vertex of the triangular faces of a pyramid is called the vertex of the pyramid. 2. Height or Altitude: The height of a pyramid is the length of the perpendicular from the vertex to the base. 3. Slant Height: The slant height of a regular right - pyramid is the line segment joining the vertex to the mid - point of anyone of the sides of the base. 4. Axis: The axis of a pyramid is the straight line joining the vertex to the central point of the base. | |||
Right Option : D | |||
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Which of the following statements is/are not true: 1.Vertex: The common vertex of the triangular faces of a pyramid is called the base of the pyramid. 2. Height or Altitude: The height of a pyramid is the length of the perpendicular from the vertex to the base. 3. Slant Height: The slant height of a regular right - pyramid is the line segment joining the vertex to the mid - point of anyone of the sides of the base. 4. Axis: The axis of a pyramid is the straight line joining the vertex to the central point of the base. | |||
Right Option : B | |||
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Match the following:
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Right Option : C | |||||||||||||
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