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autumnpoteet

  • one year ago

In ΔPQR, sin P = 0.3, sin R = 0.4 and r = 10. Find the length of p.

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  1. AonZ
    • one year ago
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    is this a right angled triangle?

  2. autumnpoteet
    • one year ago
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    No

  3. AonZ
    • one year ago
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    do you have a diagram or ur trouble is drawing one?

  4. autumnpoteet
    • one year ago
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    |dw:1370194366047:dw|

  5. autumnpoteet
    • one year ago
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    Not a full on triangle , it slants to the right.

  6. Mertsj
    • one year ago
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    |dw:1370140336493:dw|

  7. autumnpoteet
    • one year ago
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    how do i do that...

  8. Mertsj
    • one year ago
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    Substitute the know values, cross multiply and solve.

  9. Mertsj
    • one year ago
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    You are given sin P, sin R and r

  10. autumnpoteet
    • one year ago
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    so i have 0.3/p = sinP/10

  11. Mertsj
    • one year ago
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    sinP is given to be .3 Replace sin P with .3

  12. autumnpoteet
    • one year ago
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    i did.|dw:1370195180316:dw|

  13. Mertsj
    • one year ago
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    |dw:1370141209750:dw|

  14. Mertsj
    • one year ago
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    Cross multiply and solve.

  15. autumnpoteet
    • one year ago
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    so 10x0.3= 3 what does 0.4 x p = 0.4p ?

  16. Mertsj
    • one year ago
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    yes

  17. autumnpoteet
    • one year ago
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    great !

  18. autumnpoteet
    • one year ago
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    so for the answer do i just put 0.4p?

  19. Mertsj
    • one year ago
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    To solve this equation: 3=.4p Divide both sides by .4

  20. autumnpoteet
    • one year ago
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    okay. 0.4/3 = 0.13 3/0.4 = 0.75

  21. autumnpoteet
    • one year ago
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    0.4/0.4 = 1

  22. Mertsj
    • one year ago
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    Better check your decimal point

  23. autumnpoteet
    • one year ago
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    7.5

  24. Mertsj
    • one year ago
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    yes

  25. autumnpoteet
    • one year ago
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    so is 7.5 my answer?

  26. Mertsj
    • one year ago
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    yes

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