Answer:
Option (C) 468 square feet = Surface Area of right triangular prism
Explanation:
Surface Area of Right triangular prism = Area of Upper and lower part which is in the shape of right triangle with a base of 9 feet and a height of 12 feet + Area of three rectangles (first having length 15 feet and width 10 feet+ Second having length 12 feet and width 10 feet+ Third having length 9 feet and width 10 feet)