Question 1145240
One side of a right triangle is {{{ 900 }}} m
The hypotenuse is {{{ 1500 }}} m
Let {{{ s }}} = the unknown side
--------------------------------------
{{{ 1500^2 = s^2 + 900^2 }}}
{{{ 2250000 = s^2 + 810000 }}}
{{{ s^2 = 1440000 }}}
{{{ s = 1200 }}}
She ran 1200 m south
---------------------------
Note this is a 3-4-5 triangle
{{{ 900/300 }}}, {{{ 1200/300 }}}, {{{ 1500/300 }}}
{{{ 3 }}}, {{{ 4 }}}, {{{ 5 }}}