Answer:
38cm is the circumference
Explanation:
circumference = diameter x 3.14
diameter = 12
circumference = 3.14 x 12 = 37.68
Now we need to round to the nearest whole
36 and 38 are the nearest wholes to 37.68. We need to minus and then find smallest difference between the numbers; meaning the smaller the difference the closer it is.
37.68 - 36 = 0.68
38 - 37.68 = 0.32
37.68 is more closer so we can round this to 38.
I am not really sure what your trying to explain. But i think the answer would be 120. If it is right and u want more explanation than i am happy to do so! :D
Answer: 
Step-by-step explanation:
The formula for area is <em>length × width = area</em>
Sub in the values for length and width to solve
×
=
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Measuring cups
that should be correct