A mechanical digger is being used to dig a ditch for laying pipes under a road. The arm of the digger is articulated to A, and the two sections of the arm have lengths of 3.8 m and 2.7 m, as shown. If the operator keeps the first section fixed at 43˚ to the horizontal, and then moves the second section to scoop out earth, what length of ditch will be worked in one swing of the second section, to the nearest tenth of a metre?

Here is a link for the diagram
https://www.flickr.com/photos/92260718@N02/8384552559/in/photostream

Question

A mechanical digger is being used to dig a ditch for laying pipes under a road. The arm of the digger is articulated to A, and the two sections of the arm have lengths of 3.8 m and 2.7 m, as shown. If the operator keeps the first section fixed at 43˚ to the horizontal, and then moves the second section to scoop out earth, what length of ditch will be worked in one swing of the second section, to the nearest tenth of a metre?

Here is a link for the diagram
https://www.flickr.com/photos/92260718@N02/8384552559/in/photostream