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weqwewe [10]
3 years ago
11

A circle is drawn on the coordinate plane. It has a center at (2, 1) and passes through the point (2, 5). What is the approximat

e circumference of the circle?
Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
8 0
First we need to find the radius.  Using Pythagorean theorem we can find the radius which is the distance between the center and any point along the circle:

r=((5-1)^2+(2-2)^2)^(1/2)

r=(4^2-0^2)^(1/2)

r=4 units.

Circumference=2pr so our circumference is 8p units^2

Approximately 25.13 u^2

 
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