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colisv

  • 2 years ago

5. mR = 120° and mS = 100°. Find mT. The diagram is not drawn to scale. (1 point) 20° 100° 60° 40°

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  1. mathstudent55
    • 2 years ago
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    Is there a diagram?

  2. BrittanyFrench
    • 2 years ago
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    yeah I was about to ask that

  3. JaneDoe100
    • 2 years ago
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    where is m?

  4. BrittanyFrench
    • 2 years ago
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    when I clicked on it, it said provide username and password, so i can't help with this i'm sorry

  5. colisv
    • 2 years ago
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  6. JaneDoe100
    • 2 years ago
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    that doesn't have an m on it

  7. BrittanyFrench
    • 2 years ago
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    yupp there is no M

  8. colisv
    • 2 years ago
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    i think its suppose to be the M(measure) of angle R and Measure of angle S

  9. BrittanyFrench
    • 2 years ago
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    I was thinking that to.. hold on let me see if I can get this..

  10. colisv
    • 2 years ago
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    so T would be 120 too?

  11. mathstudent55
    • 2 years ago
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    |dw:1359136422941:dw|

  12. JaneDoe100
    • 2 years ago
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    40

  13. BrittanyFrench
    • 2 years ago
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    120 Is not a choice

  14. mathstudent55
    • 2 years ago
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    Sorry, look at the new picture. Only angle U and S are congruent.

  15. mathstudent55
    • 2 years ago
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    But you can find out what the sum of all the angles is.

  16. colisv
    • 2 years ago
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    100+100+120+t=360? 320+t=360 t=40

  17. JaneDoe100
    • 2 years ago
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    they all need to = 360 and u and s are conruent ao 100+100+120 =320 and 320+40=360

  18. BrittanyFrench
    • 2 years ago
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    exactly what he did, ya'll was going to fast for me lol

  19. colisv
    • 2 years ago
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    i dont understand why only U and S are the only congruent ones though

  20. colisv
    • 2 years ago
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    why not the other two?

  21. mathstudent55
    • 2 years ago
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    |dw:1359136520795:dw|

  22. JaneDoe100
    • 2 years ago
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    look at the pic. the sides of u and s are the same

  23. mathstudent55
    • 2 years ago
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    |dw:1359136561728:dw| You are given just these sides congruent, right?

  24. colisv
    • 2 years ago
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    oh and angle T shares different sides from angle S

  25. colisv
    • 2 years ago
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    I meant R not S

  26. JaneDoe100
    • 2 years ago
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    yes.

  27. mathstudent55
    • 2 years ago
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    Now draw a diagonal RS. |dw:1359136632967:dw|

  28. colisv
    • 2 years ago
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    Okay that makes more sense now then Thank you all!!!

  29. mathstudent55
    • 2 years ago
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    |dw:1359136676205:dw| Diagonal RS is congruent to itself. So triangle RUT and triangle RST are congruent, and by corresponding parts, angle U and S are congruent.

  30. mathstudent55
    • 2 years ago
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    |dw:1359136772891:dw| If you draw diagonal US, even though US is congruent to itself, there are no triangles that you can prove congruent. So you don't know anything about angles R and T being congruent.

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