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31). Find the area of the sector of a circle with a radius of 18 inches and a central angle of pheta=120 I put the info in A=1/2r^2pheta so that it read A=1/2(324)9pi/10. But I got 458.04, not the answer of 339.29. What did I do wrong?

  • Trigonometry -

    120 degrees is a third of a circle, or 2PI/3 Where did you get 9PI/10?

    The Greek letter Theta, I think, you are using.

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