Let \( A_{1}, A_{2}, A_{3} \ldots \ldots \ldots . . A_{n} \) are th... VIDEO
Let \( A_{1}, A_{2}, A_{3} \ldots \ldots \ldots . . A_{n} \) are the vertices of a regular \( n \) sided polygon inscribed in a circle of radius \( R \).
\( \mathrm{P} \) If \( \left(A_{1} A_{2}\right)^{2}+\left(A_{1} A_{3}\right)^{2}+\ldots \ldots \ldots .+\left(A_{1} A_{n}\right)^{2}=14 R^{2} \), find the number of sides in the polygon.
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