Circle

Dec 2008
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How do you find the measure of each arc of a circle that is circumscribed about a regular pentagon
 

masters

MHF Helper
Jan 2008
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Big Stone Gap, Virginia
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.