Solution of Triangles VectorWorks Machine Design includes a utility to solve for unknown values of a triangle. To solve for the unknown values of a triangle: 1. Select Machine Design > Solution of Triangles. The Solution of Triangles dialog box opens. 2. Select the format of the known values, and then enter them in the fields below. 3. Click Solve. The calculated values display in the Solution fields. 4. Click Close to exit the utility.