A blueprint of a house has a scale of 1 inch to 4 feet. Marion measured the length of the wall on the drawing at 3 inches. How long will the wall need to be constructed at?
1.) 0.75 ft
2.) 12 ft
3.) 144 ft
4.) 9 ft
To find the actual length of the wall, you need to convert the measurement on the blueprint to the actual measurement using the given scale.
The scale is 1 inch to 4 feet. So, for every 1 inch on the blueprint, it represents 4 feet in real life.
If Marion measured the length of the wall on the blueprint at 3 inches, you can multiply this by the conversion factor of 4 feet per inch to find the actual length:
3 inches x 4 feet/inch = 12 feet
Therefore, the wall needs to be constructed at a length of 12 ft.
The correct answer is option 2.) 12 ft.