Question

Calcule a distância entre os pontos a(2-1) e b (-1,3)

Answer 1

Resolução da questão, veja:

$\mathsf{D_{AB} = \sqrt{(X_{b} - X_{a})^{2} + (Y_{b} - Y_{a})^{2}}}}}\\\\\\\\\ \mathsf{D_{AB} = \sqrt{(-1-2)^{2} + (3-(-1))^{2}}}\\\\\\\\ \mathsf{D_{AB} = \sqrt{(-3)^{2} + 4^{2}}}}\\\\\\\\ \mathsf{D_{AB} = \sqrt{9+16}}}\\\\\\\\ \mathsf{D_{AB} = \sqrt{25}}\\\\\\\\\ \large\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\mathsf{D_{AB} = 5.}}}}}}}}}}}}}}}}}}}}}}}}}}}$

Oi seja, a distância entre os pontos A(2,-1) e B(-1,3) é igual a 5.

Espero que te ajude '-'