I can use the cosine rule to find the length of the crossbeam.
I finally know where to place it.
Alex and John are two best friends who woke up early in the morning to get ready for work. Alex works as a construction worker and John works as a fire fighter.
During Alex's work day, he had to use a large crane to move a crossbeam. Before he used the crane he had to find out the length of the crossbeam in order to know where to place it using trigonometry. The crossbeam is supported by two metal stays. The length of the first metal stay (AB) is 32m and the length of the second metal stay (BC) is 15m.
Alex finally solved it and found out where he had to place the crossbeam. All thanks to trigonometry.