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.
$8 A 2 B-295$
Answer
Draw a line from point P through the intersection of the two arcs. This line will be perpendicular to line r. \(\boxed{\text{Perpendicular Line}}\)
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. \(\boxed{\text{Perpendicular Line}}\)
