Question

Determine a distancia entre os pontos

A) A(5 ; -5) e B(4 ; -8)

B) A(3÷9; -2) e B (-5;15÷30)

Answer 1

Tarefa

Determine a distancia entre os pontos

A) A(5 ; -5) e B(4 ; -8)

dAB² = (Ax - Bx)² + (Ay - By)²

dAB² = (5 - 4)² + (-5 + 8)²

dAB² = 1 + 9 = 10

dAB = √10

B) A(3/9, -2) e B (-5, 15/30)

dAB² = (Ax - Bx)² + (Ay - By)²

dAB² = (1/3 + 5)² + (-2 - 1/2)²

dAB² = (16/3)² + (5/2)²

dAB² = 256/9 + 25/4 = 1024/36 + 225/36 = 1249/36

dAB = √1249/6