document.write( "Question 798275: one interior angle of a regular polygon is 135 degrees (i)calculate the size of exterior angle
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Algebra.Com's Answer #482114 by KMST(5328)\"\" \"About 
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An interior angle of a polygon and the corresponding exterior angle are supplementary. They add up to \"180%5Eo\"
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\n" ); document.write( "EXTRA INFORMATION:
\n" ); document.write( "As you go around a polygon, an exterior angle is the change of direction as you \"turn the corner\". One whole turn around the polygon is \"360%5Eo\", so all the exterior angles add up to \"360%5Eo\".
\n" ); document.write( "In a regular polygon, all angles have the same measure, so after you turn your direction by \"45%5Eo\" at \"8\" vertices, you will have made a complete
\n" ); document.write( "\"8%2A45%5Eo=360%5Eo\" turn around the polygon and will be going in the direction you started (and on the side you started).
\n" ); document.write( "That polygon has 8 vertices (and 8 sides). It's an octagon, just like a STOP sign.
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