Asked by Thano
What happens to the area within the circle as the circle’s radius doubles? Triples? What happens if the radius grows to four times its original length?
Answers
Answered by
drwls
Area = pi* R^2, where "pi" is a constant
Area is proportional to radius R squared.
If R is multiplied by 2, the area gets multiplied by 2^2 = 4. Just multiply the original area by 4.
The other answers are: 3^2 = 9 times and
4^2 = 16 times larger.
Area is proportional to radius R squared.
If R is multiplied by 2, the area gets multiplied by 2^2 = 4. Just multiply the original area by 4.
The other answers are: 3^2 = 9 times and
4^2 = 16 times larger.
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