geometry

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

  • geometry -

    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 -

    d is between ce=6x cd=4x+8 de=7 units find ce

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