Mathematics · Geometry
In a circle with center O, two chords, AB and CD, intersect each other at right angles. If the perpendicular distance from the center O to chord AB is 3 cm, and the perpendicular distance from O to chord CD is 4 cm, what is the radius of the circle?
- 1√7 cm
- 2√5 cm
- 37 cm
- 45 cm✓
Correct answer
5 cm
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