The application of geometrical concepts is critical in the contemporary music industry. Modern instruments, powerful sound systems & complex recording technology all rely on geometry for the successful delivery of sound. The video explains: * Triangles and how they are applied in home stereo systems & studio recording. Key mathematical concepts include: equilateral triangle, isosceles triangle, scalene triangle, apex of a triangle, perpendicular bisector * Polygons in recording studio design. Key mathematical concepts include: regular polygon, irregular polygon, polygon names, internal and external angle sum of a polygon.