Polygons | Revision Server | Page 1

arctic rain Jan 31, 2024, 5:23 PM

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Need help can please also tell me the interior angle formula + exterior i think its 360/no of sides and any other revelant formualas regarding polygons need help is appreciated

opaque patrol Jan 31, 2024, 5:28 PM

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Yes exterior angles is 360/n and interior is (180(n-2))/n

arctic rain Jan 31, 2024, 5:37 PM

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Cheers can you explain this question aswell pls

opaque patrol Jan 31, 2024, 5:38 PM

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With the formulas you can calculate the interior angle of the dodecagon to be 150 and the exterior to be 30

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Also we realise the triangle BCN is isosceles

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After calculating angle BCN to be 120 (360-150-90), we can get angle CBN as 30, which is the exterior angle of the dodecagon

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That means you can continue the line AB to N

#Polygons