Question 419624
There is a formula for the two points ({{{x[1]}}} , {{{y[1])}}})and ({{{x[2]}}},{{{y[2])}}}) distance:
{{{d=sqrt((x[1]-x[2])^2+(y[1]-y[2])^2)}}}
{{{d=sqrt((4-9)^2+(3-15)^2)}}}=
{{{sqrt((-5)^2+(-12)^2)}}}=
{{{sqrt(25+144)}}}=
{{{sqrt(169)}}}=
13=
13.00