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stupidinmath

  • 2 years ago

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  1. phi
    • 2 years ago
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    You need to find the radius of the circle. Sketch the problem and draw in a radius make it perpendicular to one of the triangle's sides.

  2. phi
    • 2 years ago
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    |dw:1389710684921:dw|

  3. phi
    • 2 years ago
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    do you know about 30-60-90 triangles? and how to find the length of the short side (the radius "r")?

  4. stupidinmath
    • 2 years ago
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    3-60-90 yes. radius? just divide the diameter by 2 right?

  5. phi
    • 2 years ago
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    You don't know the diameter. See the picture posted up above. what is ½ of the triangle's side?

  6. phi
    • 2 years ago
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    sides are 28√3 long.

  7. stupidinmath
    • 2 years ago
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    14√3

  8. phi
    • 2 years ago
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    |dw:1389711592719:dw|

  9. stupidinmath
    • 2 years ago
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    use tan30= r/14√3?

  10. phi
    • 2 years ago
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    you could but 30-60-90 triangles are special. http://www.regentsprep.org/Regents/math/algtrig/ATT2/Ltri30.htm

  11. phi
    • 2 years ago
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    can you find "r" ?

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