
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
In a circle with center $O$, the measure of $\angle BAC$ is $45^\circ$, and the radius of the circle $OA=15$ cm. Also, $\angle BAC$ subtends another arc $BC$ which does not include point $A$. Compute the length of arc $BC$ in terms of $\pi$. [asy]
draw(circle((0,0),1));
draw((0,0)--(sqrt(2)/2,sqrt(2)/2)--(-sqrt(2)/2,sqrt(2)/2)--(0,0));
label("$O$", (0,0), SW); label("$A$", (sqrt(2)/2,sqrt(2)/2), NE); label("$B$", (-sqrt(2)/2,sqrt(2)/2), NW);
[/asy]

Present the answer in LaTex format: \boxed{Your answer}
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