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anonymous

  • one year ago

https://media.education2020.com/evresources/2072470_aed1423b-2f99-4b9c-ac83-42970821427d.png The circle is inscribed in the triangle. Find the length of AB. A. 14 cm B. 17 cm C. 23 cm D. 27 cm

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  1. egbeach
    • one year ago
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    \[a ^{2}+b ^{2}=c ^{2}\]

  2. welshfella
    • one year ago
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    |dw:1436293628743:dw|

  3. welshfella
    • one year ago
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    the 3 sets of 2 lines are equal

  4. anonymous
    • one year ago
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    Uh huh?

  5. welshfella
    • one year ago
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    |dw:1436293745761:dw|

  6. welshfella
    • one year ago
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    |dw:1436293847100:dw|

  7. welshfella
    • one year ago
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    from the above you should find the length of AB

  8. welshfella
    • one year ago
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    the 2 lines from A to where they touch the circle are equal and one of them = 17 - 4 = ?

  9. welshfella
    • one year ago
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    |dw:1436294046498:dw|

  10. anonymous
    • one year ago
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    17-4=13

  11. welshfella
    • one year ago
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    right so the length of the other is also 13 so now you can find the length of AB

  12. welshfella
    • one year ago
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    from point B to where the line touches the circle is 10

  13. anonymous
    • one year ago
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    OKayy

  14. welshfella
    • one year ago
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    |dw:1436294197339:dw|

  15. welshfella
    • one year ago
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    and the other part = ? - look at the 3 lines indicating equality

  16. anonymous
    • one year ago
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    I see them...

  17. welshfella
    • one year ago
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    well we know the length on one and the other is the same

  18. anonymous
    • one year ago
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    Right

  19. welshfella
    • one year ago
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    so AB = 10 + ?

  20. anonymous
    • one year ago
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    13?

  21. welshfella
    • one year ago
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    right

  22. anonymous
    • one year ago
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    So its 23

  23. welshfella
    • one year ago
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    the whole thing is about one theorem tangents from one point to 2 points on a circle are congruent

  24. welshfella
    • one year ago
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    yes

  25. anonymous
    • one year ago
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    Thank you! Youve been such a big help! :D

  26. welshfella
    • one year ago
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    |dw:1436294552289:dw|

  27. welshfella
    • one year ago
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    AS = AT

  28. welshfella
    • one year ago
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    yw

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