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Pyramids Geometry Mr. Bower BowerPower.net
Pyramid There are a lot of interesting parts to a pyramid We will focus on pyramids that have regular polygons as bases This pyramid is a SQUARE PYRAMID
Pyramid Parts b is a BASE EDGE of the pyramid For a regular pyramid, the perimeter will equal b (# of sides)
Pyramid Parts h is the height of the pyramid For a regular pyramid, h connects the center to the apex (the top point)
Pyramid Parts l is the SLANT HEIGHT of the pyramid Each side of a regular pyramid is an isosceles triangle – l is the height of each of these triangles
Pyramid Parts r is a RADIUS of the pyramid In a regular pyramid, r connects the center to a vertex on the base It’s the same r you expect on a regular polygon
Pyramid Parts a is an APOTHEM of the pyramid In a regular pyramid, a connects the center to a midpoint of a base edge It is perpendicular to the base edge
Pyramid Parts A LATERAL EDGE (L.E) connects the apex with a vertex on the base A L.E. is the segment where two lateral faces meet
Pyramid – Right Triangle #1 There are three types of right triangles in a regular pyramid
Pyramid – Right Triangle #2 There are three types of right triangles in a regular pyramid
Pyramid – Right Triangle #3 There are three types of right triangles in a regular pyramid
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