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anonymous

  • one year ago

SQ bisects angle RST mQST= 2x+18 and mRST= 6x-2 what is angle RSQ please explain when u give answer

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  1. jim_thompson5910
    • one year ago
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    |dw:1440027049130:dw|

  2. jim_thompson5910
    • one year ago
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    |dw:1440027069468:dw|

  3. jim_thompson5910
    • one year ago
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    `SQ bisects angle RST` which means we have 2 equal pieces angle RSQ = angle QST

  4. jim_thompson5910
    • one year ago
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    also (angle RSQ) + (angle QST) = angle RST (angle QST) + (angle QST) = angle RST 2*(angle QST) = angle RST

  5. jim_thompson5910
    • one year ago
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    let me know if this helps or not

  6. anonymous
    • one year ago
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    thank you i know that but i just forgot the equation like either add them or subtract

  7. jim_thompson5910
    • one year ago
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    since 2*(angle QST) = angle RST, we can make substitutions to get 2*(2x+18) = 6x-2 solve for x and use this value of x to find angle QST. Knowing QST means you know RSQ

  8. anonymous
    • one year ago
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    where did u get 2* i thought it was only 6x-2=2x+18 do u add the xs together or subtract 2x from 6x?

  9. jim_thompson5910
    • one year ago
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    do you agree that `(angle RSQ) + (angle QST) = angle RST` ?

  10. anonymous
    • one year ago
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    yes

  11. jim_thompson5910
    • one year ago
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    what I did was replace `(angle RSQ)` with `(angle QST)`

  12. jim_thompson5910
    • one year ago
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    since the two angles are equal, that's valid

  13. jim_thompson5910
    • one year ago
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    that gives `(angle QST) + (angle QST) = angle RST` on the left side are two copies of "QST", so that's where the "2*" comes from

  14. jim_thompson5910
    • one year ago
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    that's how I got 2*(angle QST) = angle RST

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