Mathematics · Geometry
The radius of a circular embankment is 30 meters. A drainage system is placed along a circle with a radius that is 10 meters smaller than the embankment. What is the radius of the drainage circle?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 120 m✓
- 212 m
- 314 m
- 430 m
Correct answer
20 m
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