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charlotte123 Group Title

If triangle TRM ~ Triangle KBV, and the ratio of RM to BV is 2:5, what do you know about the relationship between MT and VK ? Explain.

  • 2 years ago
  • 2 years ago

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  1. georgeblue22 Group Title
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    Similar triangles have the same ratio for their corresponding sides. Since triangle TRM is similar to triangle KBV, The ratio between MT and VK is also 2:5

    • 2 years ago
  2. charlotte123 Group Title
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    thanks so much :D

    • 2 years ago
  3. Fellowroot Group Title
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    I do know that, since Im studying for the GRE that when you see a ratio you can think like this.... 2:5 RM:BV ______ 5RM=2BV

    • 2 years ago
  4. charlotte123 Group Title
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    but it says the ratio between RM to BV is 2:5?

    • 2 years ago
  5. Fellowroot Group Title
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    YES, from that you can get 5RM=2BV trust me, im using this on the GRE problems.

    • 2 years ago
  6. Fellowroot Group Title
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    and im a math a physics major

    • 2 years ago
  7. charlotte123 Group Title
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    im confused nwo :P

    • 2 years ago
  8. Fellowroot Group Title
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    hang on, i'll explain

    • 2 years ago
  9. charlotte123 Group Title
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    ok :)

    • 2 years ago
  10. Fellowroot Group Title
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    This is a GRE problem right from the book. Say you have a total of 30 coins which are only of pennies and nickles and the pennies and nickles are in a 2:1 ratio. How many pennies would you have?

    • 2 years ago
  11. charlotte123 Group Title
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    ah see :) so how does this look: Similar triangles have the same ratio for their corresponding sides. Since triangle TRM is similar to triangle KBV, and the ratio of RM to BV is 2:5, then the ratio between MT and VK is also 2:5.

    • 2 years ago
  12. Fellowroot Group Title
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    do like this...

    • 2 years ago
  13. Fellowroot Group Title
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    |dw:1342500713064:dw|

    • 2 years ago
  14. charlotte123 Group Title
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    but what I wrote, is it also correct? :P

    • 2 years ago
  15. Fellowroot Group Title
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    get the ratio and cross multiply to get an equation, use the equation to solve the problem. BUT in your problem we did not know the total length of all the sides in the triangle so it didnt work

    • 2 years ago
  16. Fellowroot Group Title
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    The GRE has another way of doing it.....watch....same problem as before but different approach.

    • 2 years ago
  17. charlotte123 Group Title
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    I know :) but what I wrote is it coorect as well? :)

    • 2 years ago
  18. Fellowroot Group Title
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    |dw:1342500898820:dw|

    • 2 years ago
  19. charlotte123 Group Title
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    ill make sure to put that in :) but what i wrote is it correct?

    • 2 years ago
  20. charlotte123 Group Title
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    george is this correct? Similar triangles have the same ratio for their corresponding sides. Since triangle TRM is similar to triangle KBV, and the ratio of RM to BV is 2:5, then the ratio between MT and VK is also 2:5.

    • 2 years ago
  21. Fellowroot Group Title
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    what did you write that you want me to see if correct

    • 2 years ago
  22. charlotte123 Group Title
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    Similar triangles have the same ratio for their corresponding sides. Since triangle TRM is similar to triangle KBV, and the ratio of RM to BV is 2:5, then the ratio between MT and VK is also 2:5. :)

    • 2 years ago
  23. Fellowroot Group Title
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    you know, i really dont know, i guess if they are similar then yes, but i really dont have any proof for it and it seems like the question is too easy.

    • 2 years ago
  24. georgeblue22 Group Title
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    Since the two triangles are similar, we did not require the lengths of all the sides of the triangle to show that the ratios are the same. The fact that they are both similar proves it.

    • 2 years ago
  25. charlotte123 Group Title
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    R u sure? :)

    • 2 years ago
  26. georgeblue22 Group Title
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    And @charlotte123 ,your statement is correct

    • 2 years ago
  27. charlotte123 Group Title
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    so how did u get the 2:5 ratio from? :P sorry im so confused :(

    • 2 years ago
  28. georgeblue22 Group Title
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    wasn't it from your question? that was the ratio of a pair of corresponding sides from the two triangles

    • 2 years ago
  29. charlotte123 Group Title
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    exactly but saying that they have the ratio 2:5 is that like saying that RM and BV r similar 2 mt and vk?

    • 2 years ago
  30. georgeblue22 Group Title
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    both pairs of sides share the same ratio, not the same length

    • 2 years ago
  31. charlotte123 Group Title
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    so should I write Similar triangles have the same ratio for their corresponding sides. Since triangle TRM is similar to triangle KBV, and the ratio of RM to BV is 2:5, then the ratio between MT and VK is also 2:5. or Similar triangles have the same ratio for their corresponding sides. Since triangle TRM is similar to triangle KBV then the ratio between MT and VK is also 2:5.

    • 2 years ago
  32. georgeblue22 Group Title
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    the first explanation is better because it explains where the ratio 2:5 was taken from

    • 2 years ago
  33. charlotte123 Group Title
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    thanks so much :D

    • 2 years ago
  34. georgeblue22 Group Title
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    you're welcome

    • 2 years ago
  35. charlotte123 Group Title
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    have a great nite :)

    • 2 years ago
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