Computer · Surveying
The distance from the point of intersection to the apex of a simple circular curve along the radial line is given by the ________.
- 1sum of the radius of the simple circular curve and the normal chord length
- 2external distance (apex distance)✓
- 3sum of the radius of the simple circular curve and the mid-ordinate height produced from the long chord
- 4sum of the radius of the simple circular curve and the tangent length
Correct answer
external distance (apex distance)
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