Answer:
1. Area is 1800 cm. I found this out by multiplying 36 and 50 together.
2. He can figure out that the scale factor 5:1 means that 1 cm in the drawing is 0.2 cm in reality, so he would take 36 and 50 and multiply them both by 0.2 cm then add them to get 17.2, which is the actual area of the rectangle.
3. Actual area is 17.2
Step-by-step explanation:
Really hope this helps! also I dont know if this is correct, this is just what I got in my little peanut brain, so yeah, again, hope this helps.