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The common tangent of a compound curve makes an angle of 14 degrees and 20 degrees...

The common tangent of a compound curve makes an angle of 14 degrees and 20 degrees with the tangent of the first curve and the second curve respectively. The length of chord from PC to PCC is 73.5m and that from PCC to PT is 51.3m
a) Find the length of the chord PC to PT if it is parallel to the common tangent
b) Find the radius of the first
c) Find the radius of the second

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