Geometrymedium · Past Paper
The center of a circle is (2, 3) and it passes through (5, 7). The radius is:
A5
B25
C7
Dsqrt(7)
✓ Correct Answer: A — 5
Radius is the distance from center to point: sqrt((5-2)^2 + (7-3)^2) = sqrt(9+16) = 5.
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