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anonymous

  • one year ago

The area of the sector of a circle with a radius of 8 centimeters is 125.6 square centimeters. The estimated value of π is 3.14. The measure of the angle of the sector is

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  1. anonymous
    • one year ago
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    A.45 B.135 C.225 D.315 E.450

  2. moazzam07
    • one year ago
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    U know full angle of a circle is=360degree

  3. mathstudent55
    • one year ago
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    \(\Large A_{sector} = \dfrac{\theta}{360^o} \pi r^2\)

  4. moazzam07
    • one year ago
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    Let the angle makes by ur given sector is= theta

  5. moazzam07
    • one year ago
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    area of s circle is=pi*r^2

  6. mathstudent55
    • one year ago
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    You know A = 125.6 cm^2, r = 8 cm, pi = 3.14. Enter all those values in the formula above and solve for the angle \(\theta\) (Greek letter theta).

  7. moazzam07
    • one year ago
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    3.14*4^2=?

  8. moazzam07
    • one year ago
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    Required formula is 360/theta=50.24/12.56 Theta=?

  9. anonymous
    • one year ago
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    thx for helping out guys

  10. mathstudent55
    • one year ago
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    \(\Large A_{sector} = \dfrac{\theta}{360^o} \pi r^2\) \(\Large 125.6~cm^2 = \dfrac{\theta}{360^o} (3.14)(8~cm)^2\) Solve for \(\theta\).

  11. moazzam07
    • one year ago
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    np

  12. mathstudent55
    • one year ago
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    You're welcome.

  13. moazzam07
    • one year ago
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    @mathstudent55 come on man medal me back

  14. anonymous
    • one year ago
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    wait my answers arent adding up

  15. anonymous
    • one year ago
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    @mathstudent55

  16. mathstudent55
    • one year ago
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    What did you get?

  17. anonymous
    • one year ago
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    i got .625

  18. mathstudent55
    • one year ago
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    \(\Large \dfrac{125.6~cm^2(360^o)}{3.14(64 ~cm^2)} = \theta\)

  19. mathstudent55
    • one year ago
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    You forgot to multiply by \(360^o\)

  20. anonymous
    • one year ago
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    ooooooooooh

  21. anonymous
    • one year ago
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    i did it wrong

  22. anonymous
    • one year ago
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    thx

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