Darian wants to build a regulation-size pool table that is 9 feet in length. The plans he ordered are 18 by 36 inches. What is the scale factor of the dilation he must use to build the regulation pool table?
The scale factor is 3. Convert the feet to inches which is: 9 ft.= 108 in. Then, you divide 108 by 36 which equals 3. (I'm assuming that 36 is the length)