Mathematics · Geometry
Two circles of radii 10 cm and 5 cm touch each other externally at a point A. PQ is the direct common tangent of these two circles with centres O 1 and O 2 , respectively. The length of PQ is equal to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 16√2 cm
- 29√2 cm
- 38√2 cm
- 410√2 cm✓
Correct answer
10√2 cm
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