To add two points along the perimeter of a polygon according to specific distances in ArcMap, follow these steps:
1. **Prepare Your Data**:
- Ensure you have a polygon layer loaded in ArcMap. This could be any polygon feature class or shapefile you're working with.
2. **Open the Attribute Table**:
- Right-click the polygon layer in the Table of Contents and select "Open Attribute Table." This will allow you to view and edit the attributes