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What are Perpendicular Lines? Video Lecture - CTET & State TET

FAQs on What are Perpendicular Lines? Video Lecture - CTET & State TET

1. What are perpendicular lines?

Ans. Perpendicular lines are two lines that intersect at a right angle, forming a 90-degree angle between them. In other words, if two lines are perpendicular, they will form four right angles at the intersection point.

2. How can you identify if two lines are perpendicular?

Ans. To determine if two lines are perpendicular, you can check the slopes of the lines. If the slopes of the lines are negative reciprocals of each other, then the lines are perpendicular. For example, if one line has a slope of 2/3, the perpendicular line will have a slope of -3/2.

3. Can two horizontal lines be perpendicular?

Ans. No, two horizontal lines cannot be perpendicular to each other. Horizontal lines have a slope of zero, and for two lines to be perpendicular, their slopes must be negative reciprocals. Since zero does not have a negative reciprocal, two horizontal lines cannot form a right angle.

4. Can two vertical lines be perpendicular?

Ans. No, two vertical lines cannot be perpendicular to each other. Vertical lines have undefined slopes, and for two lines to be perpendicular, their slopes must be negative reciprocals. Since vertical lines do not have a defined slope, they cannot form a right angle.

5. Are all diagonals of a rectangle perpendicular?

Ans. Yes, all diagonals of a rectangle are perpendicular. A rectangle has four right angles, and its diagonals connect opposite corners of the rectangle. Since the opposite sides of a rectangle are parallel, the diagonals intersect at a right angle, making them perpendicular.

Text Transcript from Video

Perpendicular
Welcome to MooMooMath.
Today we are going to look at perpendicular
lines.
What are perpendicular lines or what is perpendicular?
Well perpendicular are two lines that intersect
at 90 degree angles.
So let�s look at a couple of examples of
where we will see those.
So we have two lines and they are intersecting
at 90 degree angles, and I will label it with
a little box that represents 90 degrees, and
once we know this is 90 degrees we know the
other three are 90 degrees because these are
lines and lines have a degree of 180 so that
would make all four of these 90 degrees.
Now let�s look at the two line segments.
This angle is 90 degrees and you will often
see this in a right triangle.
So a right triangle has two segments that
are perpendicular and measure 90 degrees.
So that is perpendicular lines.
Hope this helps

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Jan 08, 2025 Last updated

What are Perpendicular Lines? for CTET & State TET2025 is part of CTET & State TET preparation. The notes and questions for What are Perpendicular Lines? have been prepared according to the CTET & State TET exam syllabus. Information about What are Perpendicular Lines? covers all important topics for CTET & State TET2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for What are Perpendicular Lines?.

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