The percent of change will always be represented by a positive number because that change is an absolute value. Absolute values will always stay positive because the direction is ignored. It's not like a -1 or a -2, but it's a zero or a 3.
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Answer:
6
Step-by-step explanation:
The circumference of a circle is 
, so 
. We can use this because the area of a circle is 
. Thus, 
.
It is 4x4 then divide that by 2 since a triangle is half of a square so 16 divided by 2 which is 8
