Explain in one or two sentences why every point satisfying is at the same distance…

MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Three-Dimensional Geometry · Introduction to Three-Dimensional Geometry

Problem

Explain in one or two sentences why every point (x,y,z)(x,y,z) satisfying x2+y2+z2=49x^{2}+y^{2}+z^{2}=49 is at the same distance from the origin.

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