Saturday, February 8, 2014

Similar Figures - Group 1

For this discussion your group must answer the following essential questions: 
  • What does it mean when we say two or more figures are similar?
  • How can you conclude that two or more figures are similar?
  • How does scale factor influence similarity between figures?
  • How do we conclude two or more triangles are similar?
Your responses must be clear, concise, and must contain explanations that appeal to all learning styles in our classroom. You can create explanations with notes, pictures and links to videos that may enhance the class understanding of the topic.
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27 comments:

  1. Melissa CeliFebruary 10, 2014 at 6:49 PM

    What happen Group #1?

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  2. AnonymousFebruary 11, 2014 at 12:12 PM

    when someone says two or more figures are similar it means that their concepts of the shape are equal and alike. For example say there were two right isosceles different sizes one big and one small their still similar. There both the same type of triangle, they both have a 90 degree (right) angle.

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  3. UnknownFebruary 11, 2014 at 6:35 PM

    Two figures that have the same shape, but are not the same exact size are similar. They resemble without being identical. One way you can conclude that two or more figures are similar is that when two or more figures are similar, the ratios of the lengths of their corresponding sides are equal.

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  4. Melissa CeliFebruary 11, 2014 at 6:50 PM

    Brittany what you mean by Ratios?

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  5. UnknownFebruary 11, 2014 at 6:58 PM

    I'm referring to the concept that a ratio shows the relative sizes of two or more values....

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    Replies
    1. Melissa CeliFebruary 11, 2014 at 8:16 PM

      But isn't ratio comparing something???

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    2. UnknownFebruary 11, 2014 at 8:29 PM

      In mathematics, a ratio is a relationship between two numbers not really a comparing it's like saying x to y (x:y) or 6 to 7 (6:7)

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    3. Melissa CeliFebruary 11, 2014 at 8:36 PM

      Oh kk just making sure thank you

      Delete
  6. UnknownFebruary 11, 2014 at 8:16 PM

    Q: How does scale factor influence similarity between figures?
    A: Scale Factor influences similarity between figures in a way that if their corresponding sides are not proportional, they cannot be similar. You can do so by identifying the corresponding angles to show whether or not two figures are proportional.

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    Replies
    1. Melissa CeliFebruary 11, 2014 at 8:20 PM

      What are corresponding angles?

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    2. UnknownFebruary 11, 2014 at 8:25 PM

      Corresponding angles occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.

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  7. UnknownFebruary 11, 2014 at 8:23 PM

    Q: How do we conclude two or more triangles are similar?
    A: By identifying the triangle's interior angles and testing if the corresponding sides are in the same ratio in both triangles we can then conclude that the triangles are similar.
    R: (This Link elaborates more on the Topic: http://www.mathsisfun.com/geometry/triangles-similar-finding.html )

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  8. Melissa CeliFebruary 11, 2014 at 8:40 PM

    By identifying the interior of a triangle do you mean like identifying if is isosceles, scalene, equilateral ect..... and the rules for each of them???

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    1. UnknownFebruary 11, 2014 at 8:46 PM

      You can do that to simply the process and eliminate steps.

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    2. Melissa CeliFebruary 11, 2014 at 9:03 PM

      What? Eliminate what step?

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    3. UnknownFebruary 11, 2014 at 10:38 PM

      The process of identifying the angles, if you look at the link it states you don't even need to identify all the angles in the triangles just 2 at most. If you find that a triangle has 2 of the same angles at 60 degrees then you have an equilateral. Like that.

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    4. Melissa CeliFebruary 11, 2014 at 11:09 PM

      kk that makes sense thx for elaborating on it

      Delete
  9. UnknownFebruary 12, 2014 at 5:50 PM

    HERE YOU CAN SEE EXAMPLES OF FIGURES THAT ARE SIMILAR: http://www.mathvillage.info/node/94 ALSO, THIS WEBSITE MAY ANSWER SOME QUESTIONS THAT ARE LEFT WITHOUT ELABORATE EXPLAINATIONS

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  10. UnknownFebruary 12, 2014 at 6:04 PM

    Here is a quick, fun and entertaining video on the topic about similar figures
    http://www.youtube.com/watch?v=n754Zp-6b9Q
    (If you cant click on the link, copy and paste)

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  11. UnknownFebruary 12, 2014 at 6:05 PM

    HERE IS ANOTHER VIDEO, EXPLAINING THE SCALE FACTOR AND IT'S INFLUENCE BETWEEN FIGURES:
    http://www.youtube.com/watch?v=XtkU4VkWh8I

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  12. UnknownFebruary 12, 2014 at 7:08 PM

    Here is another video that explains the differences between Similar and Congruent figures
    ( http://www.youtube.com/watch?v=yFQ6VvxB-mQ )

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  13. Melissa CeliFebruary 12, 2014 at 9:13 PM

    By the videos and website you guys posted I understood better what is ratio and how to conclude/identity if the triangles are similar or not and much more thx guys

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  14. UnknownFebruary 13, 2014 at 8:57 AM

    what does proportional mean

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    Replies
    1. UnknownFebruary 13, 2014 at 3:29 PM

      Are you asking for an exact Definition?

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    2. AnonymousFebruary 22, 2014 at 11:30 AM

      Tamara proportional means corresponding in size or amount to something else. basiaclly a similiar figure but one is twice as big as the other but have the same ratio like these two pictures http://www.mathsisfun.com/definitions/proportional.html

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  15. UnknownFebruary 28, 2014 at 10:24 PM

    Triangles are similar if they have the same shape

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