Perpendicular lines are vertical lines that form a right angle between them, that is, an angle of degrees.
Perpendicular lines appear in many geometric shapes, such as a rectangle, a square, a right triangle, and others.

Perpendicular lines are vertical lines that form a right angle between them, that is, an angle of degrees.
Perpendicular lines appear in many geometric shapes, such as a rectangle, a square, a right triangle, and others.
Determine which lines are parallel to one another?
Perpendicular lines that form a degree angle between them.
Perpendicular lines in a right triangle.
Perpendicular lines in a rectangle: the adjacent sides in the rectangle are perpendicular to each other.
Determine which lines are parallel to one another?
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.
Identify in which of the drawings the lines are perpendicular?
Take note that perpendicular lines are lines that intersect at a 90-degree angle.
In order to better examine the types of angles that the lines create with one another, let's draw a T at the intersection point of the lines as follows:
Notice that from the drawings, in answers 1+2 a right angle is formed, meaning the lines in these drawings are perpendicular.
1 and 2
What can be said about the lines shown below?
Let's remember the different properties of lines.
The lines are not parallel since they intersect.
The lines are not perpendicular since they do not form a right angle of 90 degrees between them.
Therefore, no answer is correct.
None of the above.
What do the 4 figures below have in common?
Let's first think about the different definitions of various lines.
We can see that what is common to all of the lines is that they intersect each other, meaning they have a point of intersection.
Remember that lines that cross each other are lines that will meet at a certain point.
Therefore, the correct answer is (a).
All show intersecting lines.
What do the four figures below have in common?
Upon observation we can see that all the lines form a right angle of 90 degrees with each other.
Typically lines that form a right angle of 90 degrees with each other are perpendicular and vertical lines.
Therefore, the correct answer is a.
All the figures are perpendicular
Identify in which of the drawings the lines are perpendicular?
What can be said about the lines shown below?
What do the 4 figures below have in common?