<PRE><B>Question 568358</B>
A polygon has n sides.There of its exterior angles are 70 degree, 25 degree, 15 degree while the remaining (n-3) exterior angles are each equal to 50 degree.Find n. 
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Sum of the exterior angles is always 360.
Equatiion:
(n-3)50+70+25+15 = 360
(n-3)50+110 = 360
(n-3)= 250/50 = 5
n = 8
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cheers,
Stan H.
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