# SOLUTION: A chord of a circle is 10mm. It is parallel to a tangent and bisects the radius drawn to the point of tangency(where the line and the circle touch). Find the circumference of the c

Algebra ->  Algebra  -> Circles -> SOLUTION: A chord of a circle is 10mm. It is parallel to a tangent and bisects the radius drawn to the point of tangency(where the line and the circle touch). Find the circumference of the c      Log On

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 Geometry: Circles and their properties Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Circles Question 588140: A chord of a circle is 10mm. It is parallel to a tangent and bisects the radius drawn to the point of tangency(where the line and the circle touch). Find the circumference of the circle.Answer by ankor@dixie-net.com(15660)   (Show Source): You can put this solution on YOUR website!A chord of a circle is 10mm. It is parallel to a tangent and bisects the radius drawn to the point of tangency(where the line and the circle touch). Find the circumference of the circle. : Draw this out and you can see two right triangles are formed where side 1 = 5 (half the chord) side 2 = .5r (half the radius hypot: = r : r^2 = (.5r)^2 + 5^2 r^2 = .25r^2 = 25 r^2 - .25r^2 = 25 .75r^2 = 25 r^2 = r^2 = 33.33 r = r ~ 5.7735 is the radius Find the circumference c = c = 36.276 is the circumference