1. The problem asks to draw the side elevation of a 3D stepped rectangular block starting from the point marked with a green dot at the bottom front corner of the base prism. 2. The 3D shape consists of two stacked rectangular prisms: a larger base prism and a smaller prism on top, centered towards the back, creating a step shape. 3. The front elevation is indicated by an arrow pointing roughly leftwards and slightly downwards, so the side elevation will be viewed from the side perpendicular to this front view. 4. To draw the side elevation, imagine looking at the shape from the side, starting at the green dot (bottom front corner). The base prism will appear as a rectangle with the height and depth dimensions visible. 5. The smaller top prism will appear as a smaller rectangle stacked on the back part of the base rectangle, creating a step shape. 6. The side elevation will show two rectangles: the larger base rectangle at the bottom and the smaller rectangle on top towards the back, aligned to form the step. 7. This side view captures the height and depth of the prisms but not the width. Final answer: The side elevation is a stepped shape with a large rectangle at the bottom and a smaller rectangle on top towards the back, starting from the green dot at the bottom front corner.