दोनों विकर्णों द्वारा विभाजित एक मानक चतुर्भुज में कुल कितने त्रिभुज होते हैं?

A geometric pattern is formed inside a standard square by drawing both diagonals and connecting the midpoints of all four sides to form an inscribed diamond/square. How many total triangles are present in such a configuration?

A geometric puzzle consists of 3 large concentric circles, where each circle is divided into 4 equal sectors by two perpendicular diameters. How many total distinct circular boundary lines or closed independent circles are present in such a standard configuration containing 12 distinct arcs forming individual internal cells?