Spiral Curve $($or Transition curve$)$

Problem $1$: A spiral easement curve has a length of $100$ m with a

central curve having a radius of $300$ m $.$ Determine the offset

distance from the tangent to the second$-$quarter point of the spiral.

A$.0\mathrm{.}84$ m

B$.0\mathrm{.}52$ m

C$.0\mathrm{.}69$ m

D$.1\mathrm{.}04$ m