Is symmetry and angles part of math or geometry?

Symmetry is part of both math and geometry because geometry is a type of math.

im still very confused with perpendiculars actually like how do we find them? or why do we need them?

perpendicular lines are intersecting lines but with 90 degree angles

Where did plane figures originate from?

Hi! Plane figures originated from ancient Greeks. :)

how do I know what it is? Like is it a segment? or line?

There's three terms that look similar, but describe different figures. They're lines, rays and segments. The key similarity is that both need to connect atleast two points. Let's call these points A and B. So what's the difference you may ask? -Lines: Lines connect these points, but continue past them, they don't have a start or an end. -Rays: Rays also connect A and B, but start at one of these points and they don't stop afterwards. So they have a start, but no end. -Segments: Segments connect A and B, but don't continue past them, so they have a start and an end (A and B). Summary: Lines = No start no end. Rays = Start, but no end. Segments = Start and end. Hope this clarifies things.

Main content

Course: 4th grade > Unit 11

Lesson 1: Types of plane figures

Plane figures: FAQ

Google Classroom

Frequently asked questions about plane figures.

What's the difference between a line and a line segment?

A line goes on forever in both directions, while a line segment has two endpoints.

Try it yourself with this exercise:

Identify points, lines, line segments, rays, and angles

What are the different types of angles?

There are three main types of angles: acute (less than

90^{\circ}

), right (

90^{\circ}

), and obtuse (more than

90^{\circ}

Try it yourself with these exercises:

What is the difference between parallel and perpendicular lines?

Parallel lines are two or more lines that never intersect, no matter how far they are extended. They always maintain the same distance from one another.

Perpendicular lines, on the other hand, are two lines that intersect at a right angle (90 degrees). So, while both terms refer to the relationship between two lines, they are different relationships.

Try it yourself with these exercises:

How can I tell if a shape has line symmetry?

If you can draw a line through the shape and the two halves match up exactly, the shape has line symmetry.

Try it yourself with these exercise:

Identify line symmetry

Where do we use the concepts from this unit in the real world?

There are countless applications! For example, architects use the concepts of parallel and perpendicular lines when designing buildings, and artists use symmetry to create balanced and aesthetically pleasing works.

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sumitsbhadauriya
Posted a year ago. Direct link to sumitsbhadauriya's post “Is symmetry and angles pa...”
Is symmetry and angles part of math or geometry?
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- SADIED
  Posted a year ago. Direct link to SADIED's post “Symmetry is part of both ...”
  Symmetry is part of both math and geometry because geometry is a type of math.
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Abraham R.
Posted a year ago. Direct link to Abraham R.'s post “hi i like math”
hi i like math
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  Posted a year ago. Direct link to noemirandamonroy's post “good for you”
  good for you
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jaybalderasortiz
Posted a year ago. Direct link to jaybalderasortiz's post “im still very confused wi...”
im still very confused with perpendiculars actually like how do we find them? or why do we need them?
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(15 votes)
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- EthanE
  Posted a year ago. Direct link to EthanE's post “perpendicular lines are i...”
  perpendicular lines are intersecting lines but with 90 degree angles
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Openthenoor
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annabellef
Posted 10 months ago. Direct link to annabellef's post “how do I know what it is?...”
how do I know what it is? Like is it a segment? or line?
Button navigates to signup pageComment on annabellef's post “how do I know what it is?...”
(6 votes)
Answer
- chnapak.games
  Posted 9 months ago. Direct link to chnapak.games's post “There's three terms that ...”
  There's three terms that look similar, but describe different figures. They're lines, rays and segments.
  
  The key similarity is that both need to connect atleast two points. Let's call these points A and B. So what's the difference you may ask?
  
  -Lines: Lines connect these points, but continue past them, they don't have a start or an end.
  
  -Rays: Rays also connect A and B, but start at one of these points and they don't stop afterwards. So they have a start, but no end.
  
  -Segments: Segments connect A and B, but don't continue past them, so they have a start and an end (A and B).
  
  Summary:
  Lines = No start no end.
  Rays = Start, but no end.
  Segments = Start and end.
  
  Hope this clarifies things.
  Comment on chnapak.games's post “There's three terms that ...”
  (15 votes)
B
Posted a year ago. Direct link to B's post “Where did plane figures o...”
Where did plane figures originate from?
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- navisha.jain2013
  Posted 3 months ago. Direct link to navisha.jain2013's post “Hi! Plane figures origina...”
  Hi! Plane figures originated from ancient Greeks. :)
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  (2 votes)
mrconfer
Posted 3 months ago. Direct link to mrconfer's post “how many types of lines a...”
how many types of lines are there
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- Miles
  Posted a month ago. Direct link to Miles's post “I do not know. I am curio...”
  I do not know. I am curios about that too.
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SADIED
Posted a year ago. Direct link to SADIED's post “It is part of of both bec...”
It is part of of both because geometry is a type of math.
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is the MG the best club?
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