Formula triangles are primarily used for solving equations involving distance, speed, and time (option 1).
They offer a visual method to rearrange formulas, allowing easy calculation of missing values when two out of the three variables are known.
These triangles are a handy tool in physics and related fields, aiding in quick calculations for motion-related problems like velocity, distance traveled, or time taken.
While they're not directly applicable to solving algebraic equations (option 2), their utility lies in simplifying and rearranging formulas to swiftly derive unknown values in scenarios involving distance, speed, and time.