The azimuth from south of tangent from PC to Pl is 210° and PI to PT is 315°. The central angle of the first curve is 48°30' and the tangent of the first curve measures one third of the distance V1 to V2. The distance V1 to V2 is known as 450 meters. Determine the interior angle of the compound curve in degrees

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A: sin50=120.2PI-PTT=RtanI2156.91=Rtan502R=336.49mD=1781.9336.49=5

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A: Schematic diagram of the given problem:

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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.