document.write( "Question 322887: If possible, give the name of the convex polygon in which the sum of the interior angles equals 1260° \n" ); document.write( "

Algebra.Com's Answer #231145 by Earlsdon(6294) $\"\"$ $\"About$

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The sum (S) of the interior angles of a polygon with n sides is given by:
\n" ); document.write( " $\"S+=+%28n-2%29180\"$ and this is given as 1260 degrees, so...
\n" ); document.write( " $\"%28n-2%29180+=+1260\"$ Divide both sides by 180.
\n" ); document.write( " $\"n-2+=+7\"$ Add 2 to both sides.
\n" ); document.write( " $\"n+=+9\"$
\n" ); document.write( "The polygon has 9 sides and this is called a nonagon. \n" ); document.write( "

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