Answer:
The actual height of the Space Needle is 605 feet.
Step-by-step explanation:
Scaling
It's a proportional transformation that enlarges or diminishes objects. When modeling large objects, we shrink objects by a scale factor that is equal in all dimensions.
The resulting object is similar to the original.
The model of the Space Needle in Seattle, Washington is 12.1 inches tall and it's scaled as of 1 inch = 50 feet. The scaling factor is 50/1 = 50 feet/inch.
Thus, the actual height is 12.1 * 50 = 605 feet.
The actual height of the Space Needle is 605 feet.