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ayyookyndall

  • one year ago

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  1. anonymous
    • one year ago
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    Use this theorem SAS Similarity Theorem. Notice the two sides of triangle TRS are proportional to the two sides of triangle TPQ. Next you notice that the included angle of these sides is the same. Therefore, similar. Let me know if you got it :)

  2. ayyookyndall
    • one year ago
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    So I am correct?

  3. anonymous
    • one year ago
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    Yup :D

  4. UsukiDoll
    • one year ago
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    yes it is correct

  5. anonymous
    • one year ago
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    First you have to apply Pythagorean theorem .. you have 3 sides then 3 combination try all of them first to be sure if it is right-angled triangle or not then see if it obtuse or acute , but first lets get through steps

  6. UsukiDoll
    • one year ago
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    a right triangle is exactly 90 degrees acute triangle is < 90 degrees obtuse tirangle > 90 degrees

  7. UsukiDoll
    • one year ago
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    ok :)

  8. anonymous
    • one year ago
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    Sorry I will re answer :D

  9. ayyookyndall
    • one year ago
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    Take your time. :-)

  10. anonymous
    • one year ago
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    1) 80 & 89 \[\sqrt{80^2 + 89^2} \neq 39\] 2) 89 & 39 \[\sqrt{89^2+39^2} \neq 80\] 3) 80 & 39 \[\sqrt{80^2 + 39^2} = 89\] So this is a right-angled triangle :)

  11. ayyookyndall
    • one year ago
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    How? A right -angled triangle would have a 90 degree with it...

  12. anonymous
    • one year ago
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    And you know that for a right-angled triangle Pythagorean theorem is applicable ? So why not using this fact to solve ! :D Any way you can draw them like this and get Ur calculator and some coffee then do Ur calculations for each angle |dw:1432968271852:dw|

  13. anonymous
    • one year ago
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    You know the formula for arc length ? It's : |dw:1432968741023:dw| So applying this to the question we will get : \[\frac{ 90 }{ 360 } * 2π * 10 = ?\] So let me know your answer :)

  14. anonymous
    • one year ago
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    *\[\frac{ n^o }{ 360^o } * 2πr\]

  15. anonymous
    • one year ago
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    How you figured out this answer so ?

  16. ayyookyndall
    • one year ago
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    I used my calculator

  17. ayyookyndall
    • one year ago
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    I was correct, right?

  18. anonymous
    • one year ago
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    Nope ! You have done sth wrong :D Just type the equation I provided you and let me know

  19. ayyookyndall
    • one year ago
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    What does n stand for?

  20. anonymous
    • one year ago
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    The angle that the arc includes .. Sorry its 270 not 90 :)

  21. anonymous
    • one year ago
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    What is the angle for XPY ?

  22. ayyookyndall
    • one year ago
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    270 degrees?

  23. anonymous
    • one year ago
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    Aha

  24. ayyookyndall
    • one year ago
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    I got 94.2

  25. anonymous
    • one year ago
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    Nice .. This is the answer ! :D Now to get it in terms of pi just divide the result by π and you will get : 30 Then the final answer will be 30π :)

  26. ayyookyndall
    • one year ago
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    Okay. Thank you.

  27. anonymous
    • one year ago
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    Welcomes :) Feel free to ask me anytime :)

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