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PYRAMIDS

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A pyramid is a solid in which we have square at the bottom and triangles all around..

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Instead of square, the base can be some other rectangle, triangle, or any other polygon

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The sides of a polygon forming the base of a pyramid are called base edges, and other sides of a triangles are called lateral edges. The topmost point of a pyramid is called apex.

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HEIGHT AND SLANT HEIGHT

Within every square pyramid we can imagine a right triangle with perpendicular sides as the height of the pyramid and half the base edge and hypotenuse as the slant height.

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AREA OF PYRAMID

Area of pyramid = Area of base square + Area of 4 triangles

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VOLUME OF PYRAMID

Volume of pyramid is equal to a third of the product of the base area and the height.

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FILL IN THE BLANKS

  1. LATERAL FACES OF A PYRAMIDS ARE
  2. VOLUME OF PYRAMID IS
  3. THE HYPOTENUSE OF RIGHT TRIANGLE IN PYRAMID IS CALLED

TRIANGLES

1/3 (base area. height)

Slant height

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