Answer: \(\sqrt{(7-1)^2+(4-1)^2}\)
Step-by-step explanation:
Since, by the distance formula,
The distance between two points \((x_1,y_1)\) and \((x_2,y_2)\) is,
\(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
Therefore, the distance between EF is,
\(\sqrt{(7-1)^2+(4-1)^2}\)
Which is the required expression,
\(EF=\sqrt{(6)^2+(3)^2}\)
\(EF=\sqrt{36+9}\)
\(EF=\sqrt{45} \text{ unit}\)
