The radius of the first circle is shown as 3cm. They then increase by 2cm each time: 5cm → 7cm → 9cm → 11cm. So, the radius of the largest circle is 11cm.

Math Circle aims to make math fun for kids. 0 ... The idea to start a Math Circle in Shippensburg came ... and that art and drawing are a big part of it,” Sarah Bryant said. “Math is a ...