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anonymous

  • one year ago

Please help ..... The circle has area 25. Which is greater? A. The length of chord AB B. 10

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  1. anonymous
    • one year ago
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    |dw:1442592726071:dw|

  2. anonymous
    • one year ago
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    10 is greater

  3. Nnesha
    • one year ago
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    formula for circle area is \[\huge\rm A=\pi r^2\] for this question chord is same as diameter

  4. Nnesha
    • one year ago
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    so you can substitute a for 25 to find r and radius is half of the diameter

  5. anonymous
    • one year ago
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    wait nvm 10 is not greater

  6. anonymous
    • one year ago
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    how do i find the chord?

  7. anonymous
    • one year ago
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    if the area is 25.... then how do i deconstruct that...

  8. anonymous
    • one year ago
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    |dw:1442593407064:dw|

  9. Nnesha
    • one year ago
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    chord: ends point of chord would be `on` the circle |dw:1442593461551:dw| if the passes through the center then its called the diameter

  10. Nnesha
    • one year ago
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    the line*

  11. anonymous
    • one year ago
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    AB is a chord not diameter tho

  12. Nnesha
    • one year ago
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    well looks like AB line passes through the center ......

  13. anonymous
    • one year ago
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    not drawn to scale

  14. Nnesha
    • one year ago
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    nvm then, by just looking at the diagram AB looks like diameter..

  15. anonymous
    • one year ago
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    so what do i do....

  16. anonymous
    • one year ago
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    nvm it's logic i got it

  17. Nnesha
    • one year ago
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    what did you get ?

  18. anonymous
    • one year ago
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    |dw:1442594618735:dw|

  19. Nnesha
    • one year ago
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    that's what i said if you solve for r u will get 2.82 and diameter is double of radius ...

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