Let's break down the solution step by step: --- ## **Step 1: Understand the Views Provided** - **Left Object:** Rectangular with three holes (one large central, two smaller side holes). - **Right Object:** Circular with concentric circles (indicating cylindrical features). Each has a **front view** (above) and a **top view** (below). --- ## **Step 2: Decide the Cutting Plane** - **Half-section**: The object is cut in half, typically along its centerline, and one half is shown as a sectioned view. - **Cutting Plane**: Draw a line (often labeled as A-A) down the center vertically in the front view (for both objects). --- ## **Step 3: Draw the Cutting Plane** ### **Left Object** - Draw a vertical line through the center of the front view. Label it as the cutting plane (A-A). ### **Right Object** - Draw a vertical line through the center of the circular front view. Label it as the cutting plane (A-A). --- ## **Step 4: Sketch the Half-Section View** ### **Left Object: Half-Section** 1. **Left Half (Section View):** - The object is cut vertically. - The left half shows the inside features: the three holes' interiors, as if the left side is removed. - Use section lining (hatching) to show cut areas. - Show the profiles of the holes as rectangles; the center hole will be larger. 2. **Right Half (Unsectioned):** - The right half is drawn as a regular external view. - Do **not** section this half. #### **Result:** - The left side shows the internal details with hatching. - The right side shows the normal exterior. ### **Right Object: Half-Section** 1. **Left Half (Section View):** - The object is cut vertically down the center. - The left half shows the inside features of the cylinder. - Hatching shows the wall thickness and the holes inside. 2. **Right Half (Unsectioned):** - The right half is the regular exterior view. #### **Result:** - The left side shows internal structure with hatching. - The right side shows the normal external profile. --- ## **Step 5: Final Drawing** ### **Left Object:** ``` |---|---| | | | | | | | | | <-- Front View, vertical cutting plane in the center | | | |---|---| Half-section: - Left half: Sectioned, shows interior of holes with hatching. - Right half: Normal exterior. ``` ### **Right Object:** ``` ___ / \ | | <-- Front View, vertical cutting plane in the center \___/ Half-section: - Left half: Sectioned, shows walls and holes with hatching. - Right half: Normal exterior. ``` --- ## **Step 6: Mark the Cutting Plane** - Mark the cutting plane in the front view with a thick dashed line and arrows, and label it (A-A). --- ## **Summary Table** | Object | Cutting Plane Location | Half-section View | |--------------|-----------------------|-----------------------------------| | Left Object | Vertical center | Left: sectioned, Right: normal | | Right Object | Vertical center | Left: sectioned, Right: normal | --- ## **Example Sketch** ### **Left Object Half-Section View** - Draw the front view. - Add a vertical centerline. - On the left side, draw the interior with hatching for cut surfaces. - On the right, draw the exterior as usual. ### **Right Object Half-Section View** - Draw the front view. - Add a vertical centerline. - On the left, draw the cutaway with hatching. - On the right, draw the exterior. --- ## **Final Answer** **You would sketch the half-section as described above, with the cutting plane shown in the front views.** The half-section shows internal features on one side and the normal exterior on the other, with hatching for the cut surfaces. If you need an exact visual sketch, please let me know!