Arionna claims that since there are 3 feet in a yard, there are 9 cubic feet in a cubic yard. which statement about her claim is true? arionna is correct because there are 3 feet across the length of a cubic yard and 3 feet across the depth of a cubic yard. mc011-1.jpg arionna is correct because there are 3 feet in a yard and there are 3 dimensions in a cubic yard: length, depth, and height. mc011-2.jpg arionna is incorrect. there are only 3 cubic feet in a cubic yard because there are 3 feet in a yard, and the proportion will remain constant. arionna is incorrect. there are 27 cubic feet in a cubic yard because a cubic yard is a prism with dimensions 3 ft mc011-3.jpg 3 ft mc011-4.jpg 3 ft. a prism with those dimensions will take 27 cubes to fill it if each cube is a unit cube of 1 ft.