1. Problem: Given a 3D stepped prism with labeled points A, B, C, D, E, F, G, H and dimensions 10, 15, 20, and 30, draw its orthographic projections: front (önden), top (üsten), and left side (sol yandan) views. 2. Orthographic projection involves projecting the 3D object onto three principal planes: the frontal plane (front view), the horizontal plane (top view), and the profile plane (side view). 3. Step-by-step approach: 1. Identify the dimensions and shape features from the 3D figure. 2. For the top view (üsten görünüm), project all points vertically down onto the horizontal plane, preserving the x and y coordinates. 3. For the front view (önden görünüm), project all points horizontally backward onto the frontal plane, preserving the x and z coordinates. 4. For the left side view (sol yandan görünüm), project all points horizontally sideways onto the profile plane, preserving the y and z coordinates. 4. Use the given dimensions to mark lengths and heights accurately in each view. 5. Connect the projected points in each view to form the outlines and steps of the prism. 6. Label the views accordingly: "Üsten Görünüm" for top, "Önden Görünüm" for front, and "Sol Yandan Görünüm" for left side. Final answer: The orthographic projections are drawn by projecting the 3D stepped prism onto the three principal planes, preserving the corresponding coordinates and dimensions, resulting in the front, top, and left side views that represent the shape accurately in 2D.