Answer to Question #10473 in Geometry for Liz

Question #10473

If point M is the center of a sphere, with the coordinates (-1, 3,2,) and point T is a point on the surface of the sphere, with the coordinates (0,5,1) what is the radius of the sphere?

Expert's answer

Let's use the Pythagorean theorem:

R = √((-1-0)² + (3-5)² + (2-1)²) = √(1 + 4 + 1) = √6.

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