<prompt> Cobbs angle is used to measure the degree:KyphoscoliosisAngular deformity of the kneeExtent of depression in calcaneal fractureExtent of spondylolisthesis  <response>: The angle between intersecting lines drawn perpendicular to the top of the top veebrae and the bottom of the bottom veebrae is the Cobb angle Cobbs angle of 10 degree is minimum angulation to define the scoliosis. 