For any pentagram, regular or irregular, the sum of its five tip angles is: A + B + C + D + E = 180°.

Name: For any pentagram, regular or irregular, the sum of its five tip angles is: A + B + C + D + E = 180°.
Channel: Math Files
Description: For any pentagram, regular or irregular, the sum of its five tip angles is: A + B + C + D + E = 180°.

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