The circle has an area of 256π what is the radius and diameter? 4/4/2014 | Christine from Seguin, TX | 1 Answer | 0 Votes Mark favorite Subscribe Comment
A=pi*r^2 (formula for the area of a circle) 256*pi=pi*r^2 divide both sides by pi 256=r^2 take the square root of both sides r=16, the radius, and the diameter d=2*16=32 4/4/2014 | Arthur D. Comment