Mathematics · Geometry
There are two concentric circles with centre O and radii 5 cm and 3 cm. PA and PB are tangents drawn to these circles respectively from an external point P. If PA = 12 cm, then find the length of PB (in cm).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1√178
- 212
- 34√10✓
- 410
Correct answer
4√10
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