two tangets intersect at the vertex V at an angle 35 30. A simple curve joining these two tangents is expected to pass through point P that is 16.90m from the vertex. with the instrument set at the vertex, point P was determined to have a deflection angle from back tangent of 42 20     determine the radius of the curve   determine the tangent distance of the cruve

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A:

Curve setting

A curve is a turn that is provided horizontally or vertically in the design of highways, railways, and runways. A curve connects two straight lines that are separated by the deflection angle. It helps to change the direction and alignment of the highways, railway tracks, and runways. Therefore, the gradual change in their alignment is made by using a curve to provide comfort to the passengers and this also provides an easy turn to change the direction of the moving vehicle.