SOLUTION: Analytic Geometry 20.Find the diameter and the area of the circle defined by x^2+y^2=64 Thank you...

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Analytic Geometry 20.Find the diameter and the area of the circle defined by x^2+y^2=64 Thank you...      Log On


   

Question 199376: Analytic Geometry
20.Find the diameter and the area of the circle defined by x^2+y^2=64
Thank you...
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2By%5E2=64
:
r%5E2=64
:
r=8 ...so diameter = 16
:
area =%28pi%298%5E2
:
area=64%28pi%29