2. Select the Line tool in the toolbar, and then use the Line tool to draw a triangle shape.

3. Select the Select tool and double-click the triangle to edit it as a face.

4. Select the "Push/Pull" tool, click a face of the triangle and push it up or down to create an entity.

5. Push/pull the entity, select the [Rotate] tool, click an edge of the triangle, and rotate it to the required angle.