[color=#9900ff]A pyramid is a solid object having a polygon base and connected by triangular faces to its vertex. In a pyramid , all lateral faces meet at a common vertex. A pyramid is a regular pyramid it its base is a regular pyramid and the triangular faces are all congruent isosceles triangles. In this example we discuss about irregular pyramid.[/color]

[color=#333333]Let us take a cube of length l. Also trisect the cube into three pyramids, in which[br]1. base of two pyramids are the side face of cube[br]2. base of one pyramid is the bade of cube[br]In this trisection of cube into pyramids.[br]1. base area of all pyramids are equal to the base area of cube.[br]2. height of all pyramids are equal to the height of cube.[br]Therefore,[br] Volume of Cube = Volume of 3 pyramids[br] Volume of Pyramid = [/color][math]\frac{1}{3}\times[/math][color=#333333] volume of cube[br] = [/color][math]\frac{1}{3}\times[/math][color=#333333] base area [/color][math]\times[/math][color=#333333] height (Cube र Pyramid को base र उचाई एउटै छ )[br][/color][color=#0000ff]Dear learner, Applet मा दिएको चित्र लई slider लाई चलेर हेर्नुहोंला |[/color]