Read Mode
Geometry
The diameter of a round table is 7 meters. How much distance will a person walk around it?
Explanation and memory cue
The distance a person walks around a round table is the circumference, calculated as π × diameter = 3.14 × 7 ≈ 22 meters. None of the given options (10, 15, 18 meters) match this value, so 'None of these' is correct.