I’m tempted to calculate the area of a selected region. I’m thinking that calculus may
provide a more expedient procedure; I’m thinking polar coords. and iterated integrals. I’m assuming the ctr. of one is on the locus of an adjacent. Copy that?
The centers of the circles are at each of the the vertices of two concentric regular pentagons — one large, and one small. Also, each of these vertices is the center of two circles of different sizes.
RobertLovesPi.net 
I’m tempted to calculate the area of a selected region. I’m thinking that calculus may
provide a more expedient procedure; I’m thinking polar coords. and iterated integrals. I’m assuming the ctr. of one is on the locus of an adjacent. Copy that?
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The centers of the circles are at each of the the vertices of two concentric regular pentagons — one large, and one small. Also, each of these vertices is the center of two circles of different sizes.
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