That's the equation of a circle with its center at the origin and a radius of 8.
If that equals 16 then the radius is 4
X2 + y2 = 100 = r2 r = 10
x2 +y2 = R2 =16 = radius 2 R = 4
A Diophantine Equation. In order to solve it, you should use Euclide's algorithm.
Type your answer here. Find the radius for a circle with the equation x2 plus y2 equals 9? ..
8
Radius = 1111
9
7
8
That's the equation of a circle with its center at the origin and a radius of 8.
The radius is sqrt(12) = 3.464 (rounded)
Equation of a circle centre the origin is: x2 + y2 = radius2 ⇒ radius = √9 = 3.
If that equals 16 then the radius is 4
Centre = (0,0), the origin; radius = 11
If you mean: x^2 + y^2 = 121 then the radius is the square root of 121 which is 11