Question 507604
The distance between them is the hypotenuse
of a right triangle
{{{ d^2 = 20^2 + 21^2 }}}
{{{ d^2 = 400 + 441 }}
{{{ d^2 = 841 }}}
{{{ d = sqrt(841) }}}
{{{ d = 29 }}} mi
They are 29 mi apart