Volume: 32*12 = 384 cubic cm
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A cone with a base of 9 cm and a height of 12 cm has a volume of 254.469 cm3
Fist lets start by reviewing what the area of a pyramid is. Volume of a pyramid (with a rectangular base) is the Area of the Base x Height x 1/3. Where the 1/3 comes in I don't know but that's the equation. So we have a rectangle with the sides measuring 9cm x 12cm. The area of a rectangle is S1 * S2 so we have an area of 9cm*12cm=108cm2. We are given the height (altitude) as 12 cm so now that we know the area of the base, and the height we can find the volume. V= 108cm2 * 12cm *1/3 V= 1296cm3*1/3 V= 432cm3
The volume is: 301.6 cm3
Area is 36cm2
It is: 10*12*14.5 = 1740 cubic cm