3. Last month, Luiza's bank statement said that she had money in her account. Her bank balance was 109.32 rubles. This month, Lu
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We know that the law of sines states that:
For simplicity, let:
In triangle A1BC this leads to:
Therefore:
Now, triangle A2BC is isosceles which means that both the base angles are equal, since angle CA1B and A2A1B are supplementary we have: