
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
Let $ABCD$ be a tetrahedron with vertex $D$ such that edges $AD$, $BD$, and $CD$ are mutually perpendicular. Let the areas of triangles $ABD$, $BCD$, and $ACD$ be denoted by $p$, $q$, and $r$, respectively. Calculate the area of triangle $ABC$ in terms of $p$, $q$, and $r$.

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