Question 1151291
You have a right triangle. One leg is {{{ a = 1 }}} mi
The hypotenuse is {{{ c = 2 }}} mi
The 3rd leg is:
{{{ b^2 = 2^2 - 1^2 }}}
{{{ b^2 = 4 - 1 }}}
{{{ b^2 = 3 }}}
{{{ b = sqrt(3) }}}
{{{ b = 1.732 }}}
It is 1.7 mi from Ben's to Vivian's house , heading due north