Question 984544
Let {{{ theta }}} = the unknown angle
given:
{{{ theta = ( 90 - theta ) + 40 }}}
{{{ 2*theta = 130 }}}
{{{ theta = 65 }}}
The complement of {{{ theta }}} is:
{{{ 90 - theta = 90 - 65 }}}
{{{ 90 - theta = 25 }}} degrees