Mathematics · Geometry
R is a point outside a circle and is 18 cm away from its centre. A secant drawn from the point R intersects the circle at points A and B in such a way that RA = 7 cm and AB = 5 cm. The radius of the circle (in cm) is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14√15✓
- 25√15
- 37√15
- 43√15
Correct answer
4√15
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