Cyberchase: The Exact Center
Math → Geometry → Center of a Circle
The CyberSquad and Slider need to find the center of the circle and place the ring there in order to save Cyberspace. Inez and Jackie make a pattern of the circle using cloth and mark halfway points in each direction by folding the cloth evenly. Matt tests that they have marked the exact center by using his yoyo string to ensure ensure that every point on the edge is the same distance from the alleged center.