兩點之間距離計算機
輸入
d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}
結果
\begin{aligned} \Delta x &= x_2 - x_1 \\ &= (4) - (1) \\ &= ? \end{aligned}
\begin{aligned} \Delta y &= y_2 - y_1 \\ &= (6) - (2) \\ &= ? \end{aligned}
\begin{aligned} d &= \sqrt{(\Delta x)^2 + (\Delta y)^2} \\ &= \sqrt{(?)^2 + (?)^2} = ? \end{aligned}