17. Support beams AC and BD are each 15 feet long in the rectangular storage shed shown below (top view). If the shed is 9 feet wide along AD, how many feet deep is it along AB ?

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

From the meaning of the question, AC=15 and BC=9, then according to the Pythagorean theorem, AB=√AC²+ BC² can be obtained, and if the value is substituted, then AB=12, and the answer is C.