ATVIDABES 1. A seguir apresentamos o ponto $P$ e a linha reta $r$. - $p$ 2 Com b constru a) Usando régua e compasso construa uma linha perpendicular a $r$, passando por $P$. b) Explique o procedimento usado para construir a linha perpendicular. $8 A 2 B-295$

Step 1 ：Place the compass point on point P and draw an arc that intersects line r at two points, A and B.

Step 2 ：Without changing the compass width, place the compass point on point A and draw an arc above and below line r.

Step 3 ：Without changing the compass width, place the compass point on point B and draw another arc intersecting the previous arc.

Step 4 ：Draw a line from point P through the intersection of the two arcs. This line will be perpendicular to line r. \(\boxed{\text{Perpendicular Line}}\)