Question

A distância entre os pontos P=(1,0) e Q=(2,8) é:

Answer 1

$P~(1~;~0)~~e~~Q~(2~;~8)\\\\\\ D_{pq}= \sqrt{(x_q-x_p)^2+(y_q-y_p)^2} \\\\\\ D_{pq}= \sqrt{(2-1)^2+(8-0)^2}\to \\\\D_{pq}= \sqrt{1^2+8^2}\to \\\\D_{pq}= \sqrt{1+64}\to \\\\ \large\boxed{D_{pq}= \sqrt{65}}$