In drawing B, we observe two right angles, which teaches us that they are practically equal. From this, we can conclude that they are corresponding angles, located at the intersection of two parallel lines.
In drawing A, we only see one right angle, so we cannot deduce that the two lines are parallel.
Answer
B
Exercise #2
Which lines are parallel to each other?
Video Solution
Step-by-Step Solution
Let's remember that parallel lines are lines that, if extended, will never intersect.
In diagrams a'+b'+c', all the lines intersect with each other at a certain point, except for diagram d'.
The lines drawn in answer d' will never intersect.
Answer
Exercise #3
Which lines are perpendicular to each other?
Video Solution
Step-by-Step Solution
Let's remember that perpendicular lines are lines that form a right angle of 90 degrees between them.
The only drawing where it can be seen that the lines form a right angle of 90 degrees between them is drawing A.
Answer
Exercise #4
Which lines are perpendicular to each other?
Video Solution
Step-by-Step Solution
Perpendicular lines are lines that form a right angle of 90 degrees between them.
The only drawing where the lines form a right angle of 90 degrees between them is drawing A.
Answer
Exercise #5
Which figure(s) show intersecting lines?
Video Solution
Step-by-Step Solution
Lines that intersect each other are lines that divide the side into two equal parts.
The drawings showing that the lines divide the sides into equal parts are drawings 1+3.
In drawing 2, the lines are perpendicular and vertical to each other, and in drawing 4, the lines are parallel to each other.