Mathematics · Geometry
Two circular water tanks have radii of 5 units and 3 units, respectively. The distance between their centers is 13 units. A direct common tangent is laid to pass by both tanks without crossing between them. What is the exact length of this direct common tangent?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 113 units
- 212.85 units✓
- 311.06 units
- 49 units
Correct answer
12.85 units
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