The volume of a frustum of a regular triangle pyramid is 135 cu. m. The lower base is an equilateral triangle with an edge of 9m. The upper base is 8m above the lower base. What is the upper base edge in meters?

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Q: The volume of the frustum of a regular triangular pyramid is 135 cu.m. The lower base is an…

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Q: The volume of a frustum of a regular triangular pyramid is 135 cu.m. The lower base is an…

A:

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Q: 1. What is the volume of a triangular pyramid with a length of 15 ft, a width of 7 ft, and a height…

A: We can find the volume using the formula as below

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Q: 25 in. 24 in. 15 in.

A: Formula of Lateral area, AL=12×PB×HS For pentagonal pyramid, PB=5a HS=h2+1205+25a2