A math problem related to circles

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SUMMARY

The discussion centers on the mathematical question of how a parallelogram changes when a circle is inscribed within it. Participants concluded that for a circle to be inscribed, the parallelogram must transform into a rhombus, as this shape allows for equal side lengths and angles necessary for such an inscribed circle. The original question was deemed unclear, with suggestions for improved wording to clarify the conditions imposed on the parallelogram. Overall, the consensus is that the inscribing of a circle necessitates specific geometric properties.

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  • Understanding of basic geometric shapes, specifically parallelograms and rhombuses.
  • Knowledge of inscribed circles and their properties.
  • Familiarity with the concept of geometric transformations.
  • Ability to interpret and analyze mathematical problems and their wording.
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  • Research the properties of rhombuses and their relation to inscribed circles.
  • Study geometric transformations and how they apply to shapes like parallelograms.
  • Explore the implications of inscribing circles in various polygons.
  • Examine common pitfalls in interpreting mathematical questions and how to clarify them.
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Students studying geometry, educators looking to improve problem wording, and anyone interested in the properties of geometric shapes and their transformations.

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Summary:: If a circle can be inscribed in a parallelogram how will the parallelogram change? Explain.

It is a 10th grade math question in case you want to know.
 
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STEM_nerd said:
Summary:: If a circle can be inscribed in a parallelogram how will the parallelogram change? Explain.
The question is unclear. In order for the parallelogram to "change", it would need to have some original shape. No original shape is mentioned in the question.
 
What does it mean to inscribe a circle in a shape like a parallogram?

Since this is a homework like problem, we can't simply answer it but can only provide hints to help you solve. My question is your first hint.
 
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jedishrfu said:
What does it mean to inscribe a circle in a shape like a parallogram?

Since this is a homework like problem, we can't simply answer it but can only provide hints to help you solve. My question is your first hint.

I got the answer now! It will become a rhombus.
 
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Stephen Tashi said:
The question is unclear. In order for the parallelogram to "change", it would need to have some original shape. No original shape is mentioned in the question.

The question here refers to the classic parallelogram which has equal opposite angles and equal opposite and parallel sides. It doesn't mean special parallelograms like square, rectangle, rhombus and kite.
 
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STEM_nerd said:
If a circle can be inscribed in a parallelogram how will the parallelogram change? Explain.
This problem makes no sense, as written. And the solution you gave, that it will become a rhombus, also makes no sense.
I suspect that there is additional information that hasn't been presented here.
 
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Mark44 said:
This problem makes no sense, as written. And the solution you gave, that it will become a rhombus, also makes no sense.
I suspect that there is additional information that hasn't been presented here.
There is no additional information given. The only additional thing is the diagram. That's all that's given in the question bank.
My solution that it's a rhombus definitely makes a lot of sense.
Here's the proof that I came up with.
Screenshot_20201105_083803.png
 
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Here's the original wording:
STEM_nerd said:
If a circle can be inscribed in a parallelogram how will the parallelogram change?
Your solution looks fine to me, but the wording above suggests that the parallelogram will be undergoing some change, and that's what threw me and several others off.
A better wording for the problem might be:
"If a circle can be inscribed in a parallelogram, what conditions does this fact impose on the parallelogram?"
 
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Mark44 said:
Here's the original wording:

Your solution looks fine to me, but the wording above suggests that the parallelogram will be undergoing some change, and that's what threw me and several others off.
A better wording for the problem might be:
"If a circle can be inscribed in a parallelogram, what conditions does this fact impose on the parallelogram?"
Your confusion is understandable. But that's exactly what was written in the question. It threw me off at first too. And thank you for suggesting a better wording for the question.
 
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STEM_nerd said:
Your confusion is understandable. But that's exactly what was written in the question. It threw me off at first too. And thank you for suggesting a better wording for the question.
That's funny. The first thing I thought of is that it has to be a rhombus.
 
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Chestermiller said:
That's funny. The first thing I thought of is that it has to be a rhombus.
Not me though, I couldn't understand what it means by "change". My first thought was "How does it start and how does it change ", "before or after the inscribe"
 
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Maybe it's “how would your word for it change?"
 

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