Posted by Thomas on .
A circle of area 25 pi is graphed in the coordinate plane. If its center has coordinates (8,0), which of the following points MUST lie on the circumference of the circle?
a. (0,0)
b. (0,5)
c. (16,0)
d. (3,0)
e. (0,8)
please answer and explain

math 
Steve,
radius is 5, so since (3,0) is 5 units to the left of (8,0), that's our point.
(d)