Question

Kaitlyn creates an architectural blueprint of a rectangular dining room.The area of the actual dining room is 900 times as large as the area of the dining room on the blueprint.The length of the dining room on the blueprint is 4 inches.what is the actual length of the actual dining room?

Answer 1

120 inches.

This is because to find the scale factor, you have to take the square root of the area scale. This will give you 30-1 ratio. Then multiply the 4 by that number.