The straight line connecting the end-points of the arc, or chord length = 2r sin(θ/2). [θ is in radians] c = 2(2) * sin[(2*pi/5)/2] c = 4 * sin(1.26/2) c = 2.35" = 2 11/32" Or, for pentagram side: c = 2(2) * sin[(4pi/5)/2] c = 3 13/16"
Thanks ---but not everyone can figure out or express it in formula ---the lady I had made the video for originally didn't have the math skills to be able to understand what is in your reply
Thanks again! New subscriber😊
The straight line connecting the end-points of the arc, or chord length = 2r sin(θ/2). [θ is in radians]
c = 2(2) * sin[(2*pi/5)/2]
c = 4 * sin(1.26/2)
c = 2.35" = 2 11/32"
Or, for pentagram side:
c = 2(2) * sin[(4pi/5)/2]
c = 3 13/16"
Thanks ---but not everyone can figure out or express it in formula ---the lady I had made the video for originally didn't have the math skills to be able to understand what is in your reply