A Rail Road Curve Is To Be Laid Out On A Circle. What Radius Should Be Used If The Track Is To Change Direction By 25o in A Distance Of 40 Metres?

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Question

A rail road curve is to be laid out on a circle. What radius should be used if the track is to change direction by 25^o in a distance of 40 metres?

easy

Solution

Correct option is

91.636 m

The angle in radius measure

If r is the radius of the circle, using , we have

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