How is a rectangle not a square but a square is a rectangle?

A square is a rectangle because it meets all the criteria of a rectangle: it has four sides, and all its angles are right angles. However, for a square, all its sides are the same length! Now, a rectangle can have sides of different lengths, as long as the opposite sides are equal. But if all four sides of a rectangle were the same length, then it wouldn't just be a rectangle anymore, it'd also be a square! So, a rectangle can be a square, but only if all its sides are the same length. Otherwise, it's just a rectangle, not a square.

Why’s a square a rectangle but a rectangle is not a square

The sides of a square are all the same length. The sides of a rectangle are not always equal in length.

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Course: 3rd grade > Unit 9

Lesson 1: Quadrilaterals

Quadrilaterals: FAQ

Google Classroom

Frequently asked questions about quadrilaterals.

What is a quadrilateral?

A quadrilateral is a polygon with

4

sides.

What are some common types of quadrilaterals?

Some common types of quadrilaterals include squares, rectangles, rhombuses, and trapezoids.

What is the difference between a square and a rectangle?

A square has four sides that are all the same length, while a rectangle has two sets of two sides that are the same length.

A square is always is a rectangle but a rectangle is not a square.

What is a right angle?

A right angle is a type of angle that looks like the corner of a square. When two lines meet at a right angle, they form a

90

degree angle.

One way to tell if an angle is a right angle is to use a tool called a protractor to measure it. Another way is to use a right angle ruler or "square" to see if the two lines line up perfectly with the tool.

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akumar
Posted 4 months ago. Direct link to akumar's post “How is a rectangle not a ...”
How is a rectangle not a square but a square is a rectangle?
(23 votes)
- Evan Lewis
  Posted 2 months ago. Direct link to Evan Lewis's post “A square is a rectangle b...”
  A square is a rectangle because it meets all the criteria of a rectangle: it has four sides, and all its angles are right angles. However, for a square, all its sides are the same length!
  
  Now, a rectangle can have sides of different lengths, as long as the opposite sides are equal. But if all four sides of a rectangle were the same length, then it wouldn't just be a rectangle anymore, it'd also be a square! So, a rectangle can be a square, but only if all its sides are the same length. Otherwise, it's just a rectangle, not a square.
  (19 votes)
range504838
Posted 2 months ago. Direct link to range504838's post “a right angle is two line...”
a right angle is two lines the look like this L
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(9 votes)
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- sanjana.maharana
  Posted a month ago. Direct link to sanjana.maharana's post “in a Square there are spe...”
  in a Square there are specifically 4/four right angles. "ha am I right(get it)!
  Comment on sanjana.maharana's post “in a Square there are spe...”
  (0 votes)
MaximilianD
Posted 2 months ago. Direct link to MaximilianD's post “how is a square a rectang...”
how is a square a rectangle but a rectangle is not a square
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- lamborghini
  Posted 8 days ago. Direct link to lamborghini's post “thats inresting?”
  thats inresting?
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  (1 vote)
LiamE
Posted a month ago. Direct link to LiamE's post “Why’s a square a rectangl...”
Why’s a square a rectangle but a rectangle is not a square
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(5 votes)
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- TDJ
  Posted a month ago. Direct link to TDJ's post “The sides of a square are...”
  The sides of a square are all the same length. The sides of a rectangle are not always equal in length.
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  (4 votes)
Pearl Myers
Posted a month ago. Direct link to Pearl Myers's post “how old are you”
how old are you
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clyde9863
Posted 2 months ago. Direct link to clyde9863's post “what is right angle”
what is right angle
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- EDDUARDO -ω-
  Posted 2 months ago. Direct link to EDDUARDO -ω-'s post “a square that fit at 4 co...”
  a square that fit at 4 cornes
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  (6 votes)
WilliamG
Posted 2 months ago. Direct link to WilliamG's post “can you add more lesson a...”
can you add more lesson about quadrilaterals
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Satya Kongara
Posted 11 days ago. Direct link to Satya Kongara's post “Just asking can you make ...”
Just asking can you make some games in Khan academy
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- routtenc542
  Posted 8 days ago. Direct link to routtenc542's post “I wish but we are working...”
  I wish but we are working on something......
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shams564457
Posted 2 months ago. Direct link to shams564457's post “how do you use 2 shapes t...”
how do you use 2 shapes to make a shape
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- itstotssammii
  Posted 22 days ago. Direct link to itstotssammii's post “no idea broham but if you...”
  no idea broham
  but if you grab two squares and put them together you basically have a rectangle-
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vmale
Posted 2 months ago. Direct link to vmale's post “square is not a reteanele”
square is not a reteanele
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