Thursday

December 18, 2014

December 18, 2014

Posted by **Noelle** on Thursday, September 4, 2008 at 11:13pm.

- geometry!! urgent (math) -
**drwls**, Friday, September 5, 2008 at 12:28amThe base area equals six times the area of an equilateral triangle with side length 20 cm (since six equilateral triangles make up a hexagon). Multiply that area by the base edge height for the volume.

Add twice the base area to the area of the six 20x16 cm faces to get the area.

hint: equilateral triangle area =

(1/2)*(side length)^2*[sqrt3)/2]

**Answer this Question**

**Related Questions**

geometry - A square pyramid has base edges 10 in. long and a height of 4 in. ...

Geometry - 1 How many faces does a square pyramid have? 2 How many edges does a ...

MATH - A regular triangular pyramid has an altitude of 9m and a volume of 46.8cu...

geometry - Find the lateral area of a regular hexagonal pyramid with base edge ...

geometry - A square pyramid has a volume of 196 cm^3. Determine the height of ...

math - A stairway runs up the edge of the pyramid. From bottom to top the ...

geometry - a hexagonal pyramid has a base with and area of 25 in2 and is 7 in ...

Math-trig - A stairway runs up the edge of the pyramid. From bottom to top the ...

Geometry - The base of a regular pyramid is a hexagon whose sides have length 5 ...

math - A regular hexagonal pyramid whose base perimeter is 60cm has an altitude ...