4. Reason Theorem 2-9 states that if two lines are perpendicular to the same line, then they are parallel to each other. How is Theorem 2-9 a special case
of the Converse of the Corresponding Angles Theorem?

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

$12. that is my answer.