6. a prism has bases that are equilateral triangles with sides lengths of 10 inches and a length of 30 inches.
determine the volume of the prism to the nearest cubic inch. show how you arrived at your answer
30 in
10 in
on

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.