An architect's model for a building is 1.4 m long and 0.8 m wide. The actual building is 240 m wide. What is the length of the building?

When the length and width of a rectangle are equal, the shape is a special case of a rectangle, called a square. The equation for calculating the area of a rectangle is as follows: area = length × width.

Step-by-step explanation:

If a real-sized building is 20 foot (240 inches) long you would enter 240 in the 'Real Size' box and click the nearby 'inch' button. To convert to 'Scale Size' click the next 'Inch' button to reveal the correct conversion to 1.5 inches. So, in N scale you would make your 20 foot long building 1.5 inches long.Using this information: area = 220 × 99 = 21780 sq ft. The farmer's plot of land, which has an area of 21,780 square feet, equates to half an acre, where an acre is defined as the area of 1 chain by 1 furlong, which are defined by something else, and so on, and is why SI now exists.