Learn how to use surveying data, formulas, coordinate systems, and error analysis to calculate the area and perimeter of an irregular polygon.

Christian Horner has been sacked as Red Bull team principal, with immediate effect. The 51-year-old had led the team to 14 world titles. Liam Lawson remains in the mix for promotion after his ...

FANBOOST What was FANBOOST? Introduced in the inaugural season, Formula E became the only event in the world that allowed fans to play an active role in influencing the outcome of the race. FANBOOST ...