The total surface area of the figure.
Problem 2.
1. 20 cm squared
2. I counted all of the filled squares. Then I looked for some that were half filled and added two half filled to get a complete square. I just guessed on the other small ones.
Problem 3.
1. 8 yards squared
2. yards
problem 4.
1. Not every shape or object you want to find the area of is going to be regular. Therefor you have to be able to know how to find the area of irregular objects.
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