Liev is assembling a coffee table. The diagram below is from the instruction manual and shows the table after the first two legs have been attached.
Note: Figure is not drawn to scale.
The next step in assembling the coffee table is to attach a support from point D to point C, which is halfway down leg A.
The table legs are each 18 inches tall. What is the length of the support?
Since the support needs to reach halfway down leg A, it needs to cover a distance of 9 inches (half of 18 inches).
Therefore, the length of the support from point D to point C is 9 inches.