area of circle = π (radius) 2 definition a radius is a measure of distance from the center of any circular object to its outermost edge or boundary. a radius is not only a dimension of a circle but also for a sphere, semi-sphere, a cone with a circular base, a cylinder ...
DIY Supplies::Metalworking;Size:1-6.5mm;Size2:3-15mm;Size3:15-30mm;Size4:30-45mm;customized support:OEM;customized support:ODM;customized support:OBM;place of origin:CN;ZHE;warranty:1 year;brand name:ETOPOO;model number:KJ-01;material:/;item weight:/;acc