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dietrich_harmon

  • 3 years ago

The area of sector AOB is 20.25 ft2. Find the exact area of the shaded region.

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  1. dietrich_harmon
    • 3 years ago
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  2. dietrich_harmon
    • 3 years ago
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    A. (20.25- 40.5 ft2 B. (20.25 - 81) ft2 C. ( 20.25 - 40.5 2 ) ft2 D. none of these

  3. Directrix
    • 3 years ago
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    |dw:1360004880244:dw|

  4. Directrix
    • 3 years ago
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    Subtract the area of the right triangle from the given area of the sector and you will get the shaded area (known as segment of a circle). What is the area of the right triangle? @dietrich_harmon

  5. dietrich_harmon
    • 3 years ago
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    ?B

  6. Directrix
    • 3 years ago
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    81 is not the area of the triangle. Try again.

  7. dietrich_harmon
    • 3 years ago
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    it gonna be A or c

  8. dietrich_harmon
    • 3 years ago
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    A

  9. dietrich_harmon
    • 3 years ago
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    @Directrix

  10. Directrix
    • 3 years ago
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    What is the area of the triangle? A = (1/2) b*h so ..

  11. dietrich_harmon
    • 3 years ago
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    C

  12. Directrix
    • 3 years ago
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    c) looks sketchy with C. ( 20.25 - 40.5 2 ) ft2 If the area is 40.5, what is that extra 2 doing there? @dietrich_harmon

  13. dietrich_harmon
    • 3 years ago
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    i go with c then thanks

  14. Directrix
    • 3 years ago
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    Alrighty, then.

  15. dietrich_harmon
    • 3 years ago
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    @Hero

  16. Directrix
    • 3 years ago
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    All of these options --> . (20.25- 40.5 ft2 B. (20.25 - 81) ft2 C. ( 20.25 - 40.5 2 ) ft2 give negative areas. Area is not negative so that leaves one option.

  17. dietrich_harmon
    • 3 years ago
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    D then @Directrix

  18. Directrix
    • 3 years ago
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    Yes, this was a good "tricky" question. We should have picked up on that negative business but better late than never. :)

  19. dietrich_harmon
    • 3 years ago
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    thank u

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