Question

A construction worker is looking at blueprints drawn to a 1/20 scale and notices that a wall is 0.5 feet by 0.25 feet. He claims that the area of the actual wall should be 20 times the area that is on the blueprints. Explain if he is correct or incorrect.

Explain math plz, I'm confused

Answer 1

incorrect

Explanation:

we are finding area which is squared, or we can put it in an equation, (0.5*20)*(0.25*20) or 0.5*0.25*20^2 which equals 50 but (0.5*0.25)*20 only equals 2.5 therefor he is incorrect and the correct answer would be 20^2 or 400 times the area.

hope this helps :)