Answer:
The dimensions are 5.83 inches and 6.67 inches
Explanation:
* Lets explain how to solve the problem
- The scale drawing is a ratio between the actual length and
the drawing length
- The terms of the ratio must have the same units, then the terms
of the scale drawing must have same units
* Lets solve the problem
- 1 inch represents 12 feet
∵ 1 foot = 12 inches
∴ 12 feet = 12 × 12 = 144 inches
∴ The scale drawing is 1 : 144
- That means 1 inch in drawing represents 144 inches in actual
∵ The dimensions are 70 feet by 80 feet
∴ 70 feet = 70 × 12 = 840 inches
∴ 80 feet = 80 × 12 = 960 inches
∵ The scale drawing = 1 : 144
∵ The actual dimensions are 840 inches and 960 inches
∴ 1 : 144
? : 840
? : 960
∴ 70 feet = 5.83 inches
∴ 80 feet = 6.67 inches
* The dimensions are 5.83 inches and 6.67 inches