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Sides AH and CD of regular octagon ABCDEFGH  are extended to meet at point P. What is the degree measure of angle P ?

Atroshus  Aug 28, 2017
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Each exterior  angle will form a 45°  angle  ...so, in concave quadrilateral CPAB, angles PAB and PCB  = 45°.... and angle CBA will form the concave side of the quadrilateral whose measure is 360 - 135 = 225°

 

So...angle CPA  =   360 - 90 - 225  = 45°

 

 

 

cool cool cool

CPhill  Aug 28, 2017

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