Question

Cálculo da distancia entre os pontos C(-4,0)e D(0,3)

Answer 1

$\textbf{Pontos:}\ \boxed{\mathrm{C(x_C;y_C)=C(-4;0)}}\ \mathrm{e}\ \boxed{\mathrm{D(x_D;y_D)=D(0;3)}}\\\\ \mathrm{d_{CD}=}\sqrt{\mathrm{(x_D-x_C)^2+(y_D-y_C)^2}}=\mathrm{\sqrt{(0-(-4))^2+(3-0)^2}=}\\\\ \mathrm{=\sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25}=5}\ \to\ \boxed{\mathbf{d_{CD}=5\ u.c.}}$