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Thread: Circle

  1. #1
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    Circle

    How do you find the measure of each arc of a circle that is circumscribed about a regular pentagon
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  2. #2
    A riddle wrapped in an enigma
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    Quote Originally Posted by winsome View Post
    How do you find the measure of each arc of a circle that is circumscribed about a regular pentagon
    Hi winsome,

    Each arc will have the same measure since the chords making up the regular pentagon are congruent.

    There are 360 degrees in a complete circle.

    Each arc is one-fifth of this measure.

    Each arc would then have to measure _____ degrees.

    Now, if you trying to find the arc length, you will need to know the circumference and we'll need to have the radius to do this.
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