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Math Help - Subtended angles

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    Subtended angles

    It is appropriate--that is, correct--to define or describe a subtended angle as an angle whose vertex begins at the center of a circle or sphere, and passes through the endpoints of the arc of the particular circle/sphere?
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    Quote Originally Posted by Bashyboy View Post
    It is appropriate--that is, correct--to define or describe a subtended angle as an angle whose vertex begins at the center of a circle or sphere, and passes through the endpoints of the arc of the particular circle/sphere?
    You should be more specific, in general a subtended angle is from a point and is the angle between the extremities of the "thing" at the point.

    CB
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    How about in the context of circles and spheres, would that definition fit it then?
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    angles B, C, D, and O all "subtend" arc AE.

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