Question

the point (3, 0) lies on a circle with the center at the origin. what is the area of the circle to the nearest hundredth

Answer 1

(3,0)
that means the point is 3 units from origin
origin=center
therefor the radius=3 units
area=pir^2
area=pi3^2
area=9pi
aprox pi=3.141
area=28.269 unit
round to hundreth
area=28.27 square units