The three$-$dimensional $(x,Y,Z)$ coordinates in meters of vertexes $A,B,$ and $C$ in $($Figure $1)$ are $(8649\mathrm{.}221,6703\mathrm{.}671,214\mathrm{.}686),(8762\mathrm{.}041,6649\mathrm{.}771,218\mathrm{.}346),$ and $(8752\mathrm{.}641,6770\mathrm{.}201,220\mathrm{.}535),$ respectively.

Part A

What are the coordinates of the intersection ofthe $248-$m contour with side $AB?$

Express your answers in meters to three decimal places separated by a comma.

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Part B

What are the coordinates of the intersection of the $248-m$ contour with side $BC?$

Express your answers in meters to three decimal places separated by a comma.

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