Homework Help: geometry

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

The measures of all angles in a regular octagon are (4x + 12)°. how would you find the value of x?

geometry - Reiny, Monday, October 4, 2010 at 4:13pm
The 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 5:40pm
d is between ce=6x cd=4x+8 de=7 units find ce

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