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Thread: please help calculate the angle subtended

  1. #1
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    please help calculate the angle subtended

    if the area of a sector of a circle is $\displaystyle 2.88m^2$ an the radius is 1.73m,calculate the angle subtended at the center of the circle in radians and in degrees
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  2. #2
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    Quote Originally Posted by joey1 View Post
    if the area of a sector of a circle is $\displaystyle 2.88m^2$ an the radius is 1.73m,calculate the angle subtended at the center of the circle in radians and in degrees
    $\displaystyle A = \frac{\pi r^2 \theta}{2\pi} = \frac{r^2 \theta}{2}$ if $\displaystyle \theta$ is measured in radians, or $\displaystyle A = \frac{\pi r^2 \theta}{360}$ if $\displaystyle \theta$ is measured in degrees.

    Substitute your values and solve for $\displaystyle \theta$ in both cases.
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  3. #3
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    Looks like I was beaten to it. :/
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