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anonymous

  • 5 years ago

Hey! Okay, I'm working with a two circles and I need to find the standard form of another circle that is circumcentered to the first and tangent to the second. I have the slope of the line and the standard formula's of the given triengles but I don't know how to find the other point on the 2nd circle.

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  1. amistre64
    • 5 years ago
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    your gonna have to send a pic i think

  2. anonymous
    • 5 years ago
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    haha! Yeah, It's kind of hard to explain. I can type in the complete problem on the sheet but I don;t have a scanner.

  3. amistre64
    • 5 years ago
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    use 'paint' on your computer...if you got windows that is

  4. anonymous
    • 5 years ago
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    ahh...okay, one moment...

  5. amistre64
    • 5 years ago
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    like this :)

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  6. anonymous
    • 5 years ago
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  7. anonymous
    • 5 years ago
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    Okay, the circle on the bottom is the one that needs to be circumscribed and tangent to the other one on the outter side.

  8. anonymous
    • 5 years ago
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    I know the standard formulas for the two circles here but I need the standard fromuls for the circle that circumscribes the bottom circle and is tangent to the top

  9. amistre64
    • 5 years ago
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    kinda like this?

  10. amistre64
    • 5 years ago
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  11. anonymous
    • 5 years ago
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    yes!:)

  12. amistre64
    • 5 years ago
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    whats equations of your circles then

  13. amistre64
    • 5 years ago
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    you mention triangles, care to ellaborate?

  14. anonymous
    • 5 years ago
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    well....not exactly triengles. The tengents of a circle....the line that intersects it at only one point. Top circle is....81=(x+4)^)squared)+(y-1)^squared bottom= 64=(x+2)squared+(y+4)squared

  15. anonymous
    • 5 years ago
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    I'm so lost!

  16. amistre64
    • 5 years ago
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    lets equate these 2 and see where they intersect

  17. anonymous
    • 5 years ago
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    but they overlap, no?

  18. amistre64
    • 5 years ago
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    if there is a solution to equating them then yes...so lets check it :)

  19. amistre64
    • 5 years ago
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    if i did it right; they overlap at the line 4x-10y=20.... and that is providing i didnt mess it up lol

  20. anonymous
    • 5 years ago
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    i have the answer and it says the equation is 484=(x+2)squared+ (y+4)squared

  21. amistre64
    • 5 years ago
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  22. amistre64
    • 5 years ago
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    heres your 2 circles plotted on the graph

  23. amistre64
    • 5 years ago
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    and this would be your answer once the number are input

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  24. amistre64
    • 5 years ago
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    if what you told me is right; then the new equation should equal between 196 and 225

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