In the area XY plane each point on the circle K has nonnegative coordinates and the center of the K is point (4;7).What is the maximum possible area of K?
Answers:
4
9
16
28
49
N
Answers:
4
9
16
28
49
N
OK, so understanding prob correctly, each point must have positive X & Y coordinates.nailyad wrote:In the area XY plane each point on the circle K has nonnegative coordinates and the center of the K is point (4;7).What is the maximum possible area of K?
Answers:
4
9
16
28
49
N
Since the center of the circle is at (4,7), then the maximum radius is 4 (otherwise, part of the circle would spill over into negative territory (i.e cross Y axis). Therefore, answer is 16pi.
