Question

calcule as distâncias A(3,1) e B(8,3)​

Answer 1

Explicação passo-a-passo:

Distância entre dois pontos no plano cartesiano:

$\large\begin{array}{l}\rm AB=\sqrt{(X_B-X_A)^2+(Y_B-Y_A)^2}\\\\\\\rm AB=\sqrt{(8-3)^2+(3-1)^2}\\\\\rm AB=\sqrt{5^2+2^2}\\\\\rm AB=\sqrt{25+4}\\\\\rm AB=\boxed{\sqrt{29}}\end{array}$

Answer 2

Explicação passo-a-passo:

A(3,1) e B(8,3)

A(3,1)

xa=3

ya=1

B(8,3)

xb=8

yb=3

$d = \sqrt{(xa - xb) {}^{2} + (ya - yb) {}^{2} }$

$d = \sqrt{(3 - 8) {}^{2} + (1 - 3) {}^{2} }$

$d = \sqrt{( - 5) {}^{2} + ( - 2) {}^{2} }$

$d = \sqrt{25 + 4}$

d=√29