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September 17, 2014

September 17, 2014

Posted by **daerius** on Monday, October 4, 2010 at 4:03pm.

- geometry -
**Reiny**, Monday, October 4, 2010 at 4:13pmThe sum of the interior angles of an n-gon is

180(n-2)

so here n=8.

Find the sum and then set it equal to 4x+12

solve for x

- geometry -
**jessie**, Sunday, October 24, 2010 at 5:40pmd is between ce=6x cd=4x+8 de=7 units find ce

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