What is the approximate circumference if the circle that has a center at (2,1) ans passes through the point (2,5). 1. 8 units 2. 13 units 3. 25 units 4. 50 units

We have: center(2,1) and a point on the circle (2,5):
r=5-1=4
circumference of a circle: $$2*\pi*r=2*3,14*4=25,12$$