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# Can someone give me the answer to this question

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I asked a question 1-2 days ago and I still want to know the answer...

https://web2.0calc.com/questions/halp-asap-plzz

If you could help that would be great! I still want to know how to do it cuz I might get another problem like this in the future.

Thx

Jun 18, 2020

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A regular dodecahedron \(P_1 P_2 P_3 \dotsb P_{12}\) is inscribed in a circle with radius \(1\).
Compute  \((P_1 P_2)^2 + (P_1 P_3)^2 + \dots + (P_{11} P_{12})^2\).
(The sum includes all terms of the form \((P_i P_j)^2\), where \(1 \le i < j \le 12\).