the factors and prime factorization of 14 and 28. (The biggest common factor number is the GCF number) So the greatest common factor 14 and 28 is 14.Jul
The formula for a cylinder is (pi)(radius2)(height)
the formula for a rectangular prism is l*w*h. Plug in what you know into the formulas and add what you get from each volume to get the total volume of the figure.