Find the volume of a cone with a radius of 10 mm and a height of 6 mm.
628 mm3
600 mm3
1,884 mm3
1,254 mm3
Find the surface area of a square pyramid with a base length of 11 cm and a slant height of 15 cm.
472 cm2
451 cm2
781 cm2
330 cm2
Find the volume of a rectangular prism with the following dimensions:
Length = 5 mm
Base = 7 mm
Height = 3 mm
142 mm3
105 mm3
126 mm3
130 mm
Here are some of the formulas.
http://math.about.com/od/formulas/ss/surfaceareavol_2.htm
anything with straight sides and a pointed top has volume = (1/3)base area * height
here base area = pi r^2 = 314.159
so vol = (1/3)(314.159)(6)
= 628.31 mm^3
area of one side of pyramid = (1/2)(11)(15) = 82.5 cm^2
so area of 4 sides = 330 cm^2
but we also have the area of the bottom which is 11*11 = 121 cm^2
so total = 451 cm^2