• # question_answer 3) Find the distance of a point $P(x,y)$ from the origin.

 The given point is $P(x,y)$. The origin is O (0, 0) Distance of point P from origin, $PO=\sqrt{{{\left( {{x}_{2}}-{{x}_{1}} \right)}^{2}}+{{\left( {{y}_{2}}-{{y}_{1}} \right)}^{2}}}$ $=\sqrt{{{\left( x-0 \right)}^{2}}+{{\left( y-0 \right)}^{2}}}$ $=\sqrt{{{x}^{2}}+{{y}^{2}}}$ unit