Question

calcule a distancia entre os pontos a (2,5) e b (2,8)

Answer 1

$\large \boxed{ \begin{array}{l} \sf{d_{AB} = \sqrt{(x_A - x_B) {}^{2} + (y_A - y_B) {}^{2} } } \\ \\ \sf{d_{AB} = \sqrt{(2 - 2) {}^{2} + (5 - 8) {}^{2} } } \\ \\ \sf{d_{AB} = \sqrt{0 {}^{2} + ( - 3) {}^{2} } } \\ \\ \sf{d_{AB} = \sqrt{0 + 9} } \\ \\ \sf{d_{AB} = \sqrt{9} } \\ \\ \boxed{ \boxed{ \sf{d_{AB} = 3}}}\end{array}}$