To find the actual length of the room, you can use the scale provided. The scale indicates that 1 cm on the blueprint equals 2 feet in reality.
Given that the length of the room on the blueprint is 6 cm, you can calculate the actual length as follows:
\[ \text{Actual Length} = \text{Length on Blueprint} \times \text{Scale Factor} \] \[ \text{Actual Length} = 6 , \text{cm} \times 2 , \text{feet/cm} = 12 , \text{feet} \]
Therefore, the actual length of the room is 12 feet.