im having trouble finding the surface area and volume of a pyramid and a cone

Question

owlfred · Answer

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amistre64 · Answer

volume of a pyrimad and cone are the same; basically

amistre64 · Answer

area of the base * height * (1/3)

amistre64 · Answer

surface area of a cone id have to look up

anonymous · Answer

i dont know how to even find the area of the base

amistre64 · Answer

depends on the pyramid; and teh radius of the cone

amistre64 · Answer

numbers would be helpful :)

anonymous · Answer

haha, its on a benchmark, can we say the radius is 6?

amistre64 · Answer

a pyrimad can have many different types of bases; circular being among them... which makes a cone

amistre64 · Answer

6 is fine for a radius; but then we need a height

anonymous · Answer

the height was 8, and the slant height was 10

amistre64 · Answer

6-8-10 makes a righty :)

amistre64 · Answer

pi r^2 = area of base

amistre64 · Answer

36 pi (10)
-------- = area cone
     3

amistre64 · Answer

120 pi is what they simplifies to

anonymous · Answer

ohhhh

amistre64 · Answer

http://math.about.com/od/formulas/ss/surfaceareavol_2.htm

amistre64 · Answer

surface area = pi r(slant) + pi r^2

amistre64 · Answer

pi((6)10 + 36) = 96pi for the surface area if i did it right