The "great circle" of a sphere is the cross-section through the center of the sphere. if the area of the great circle of a sphere is 17π square feet, what is the volume?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Me. i can't figure out this question. give an explanation too. .

The surface area of the triangular prism is .