Answer variants:
If a transversal intersects two parallel lines, then each pair of alternate interior angles is equal.
The sum of the angles of a triangle is \(180^\circ\).
If a ray stands on a line, then the sum of two adjacent angles so formed is \(180^\circ\)
The sum of the angles of a triangle is \(270^\circ\).
If a transversal intersects two lines such that a pair of corresponding angles are equal, then the two lines are perpendicular to each other.
Place the right statements in the boxes given below.
 
Statement \(1\):
 
Statement \(2\):
 
Statement \(3\):