On considère la figure ci-dessous :
{"init": {"range": [[-5.179779053575074, 4.450353273585142], [-7.3211901075654975, 7.3211901075654975]], "scale": [50, 50]}, "line": [[[-1.2375543804600162, -3.8037427824978156], [0.928165785345012, 2.8528070868733617], {"subtype": "segment", "stroke": "grey"}], [[1.098177172200575, -6.3211901075654975], [-1.098177172200575, 6.3211901075654975], {"subtype": "segment", "stroke": "grey"}], [[-4.179779053575074, -3.150410575107413], [0.0, 0.0], {"subtype": "segment", "stroke": "grey"}], [[3.450353273585142, 0.9084500683107709], [0.0, 0.0], {"subtype": "segment", "stroke": "grey"}], [[2.4892825023648077, -2.0454936671880226], [-3.108059692594816, 0.14362227593911478], {"subtype": "segment", "stroke": "grey"}], [[-1.3375543804600163, -3.8037427824978156], [-1.1375543804600161, -3.8037427824978156], {"stroke": "darkslategrey"}], [[-1.2375543804600162, -3.9037427824978157], [-1.2375543804600162, -3.7037427824978155], {"stroke": "darkslategrey"}], [[0.8281657853450121, 2.8528070868733617], [1.0281657853450121, 2.8528070868733617], {"stroke": "darkslategrey"}], [[0.928165785345012, 2.7528070868733616], [0.928165785345012, 2.952807086873362], {"stroke": "darkslategrey"}], [[-0.40938859511500403, -0.9509356956244539], [-0.20938859511500404, -0.9509356956244539], {"stroke": "blue"}], [[-0.30938859511500405, -1.050935695624454], [-0.30938859511500405, -0.8509356956244539], {"stroke": "blue"}], [[0.9981771722005751, -6.3211901075654975], [1.1981771722005752, -6.3211901075654975], {"stroke": "darkslategrey"}], [[1.098177172200575, -6.421190107565497], [1.098177172200575, -6.221190107565498], {"stroke": "darkslategrey"}], [[-1.1981771722005752, 6.3211901075654975], [-0.9981771722005751, 6.3211901075654975], {"stroke": "darkslategrey"}], [[-1.098177172200575, 6.221190107565498], [-1.098177172200575, 6.421190107565497], {"stroke": "darkslategrey"}], [[-4.279779053575074, -3.150410575107413], [-4.079779053575074, -3.150410575107413], {"stroke": "darkslategrey"}], [[-4.179779053575074, -3.2504105751074133], [-4.179779053575074, -3.050410575107413], {"stroke": "darkslategrey"}], [[3.350353273585142, 0.9084500683107709], [3.550353273585142, 0.9084500683107709], {"stroke": "darkslategrey"}], [[3.450353273585142, 0.8084500683107709], [3.450353273585142, 1.0084500683107709], {"stroke": "darkslategrey"}], [[2.3892825023648077, -2.0454936671880226], [2.589282502364808, -2.0454936671880226], {"stroke": "darkslategrey"}], [[2.4892825023648077, -2.1454936671880227], [2.4892825023648077, -1.9454936671880225], {"stroke": "darkslategrey"}], [[-3.208059692594816, 0.14362227593911478], [-3.008059692594816, 0.14362227593911478], {"stroke": "darkslategrey"}], [[-3.108059692594816, 0.043622275939114774], [-3.108059692594816, 0.24362227593911479], {"stroke": "darkslategrey"}], [[-1.036332285662046, -0.7057385322894372], [-0.8363322856620461, -0.7057385322894372], {"stroke": "orange"}], [[-0.9363322856620461, -0.8057385322894371], [-0.9363322856620461, -0.6057385322894372], {"stroke": "orange"}], [[0.09980282636923354, -1.1500800430753704], [0.29980282636923355, -1.1500800430753704], {"stroke": "green"}], [[0.19980282636923355, -1.2500800430753705], [0.19980282636923355, -1.0500800430753703], {"stroke": "green"}], [[-0.1, 0.0], [0.1, 0.0], {"stroke": "red"}], [[0.0, -0.1], [0.0, 0.1], {"stroke": "red"}]], "label": [[[-1.2375543804600162, -3.8037427824978156], "A", "below", {"color": "darkslategrey"}], [[0.928165785345012, 2.8528070868733617], "B", "above", {"color": "darkslategrey"}], [[-0.30938859511500405, -0.9509356956244539], "C", "below", {"color": "blue"}], [[1.098177172200575, -6.3211901075654975], "E", "below", {"color": "darkslategrey"}], [[-1.098177172200575, 6.3211901075654975], "F", "above", {"color": "darkslategrey"}], [[-4.179779053575074, -3.150410575107413], "G", "below left", {"color": "darkslategrey"}], [[3.450353273585142, 0.9084500683107709], "H", "above right", {"color": "darkslategrey"}], [[2.4892825023648077, -2.0454936671880226], "I", "below right", {"color": "darkslategrey"}], [[-3.108059692594816, 0.14362227593911478], "J", "left", {"color": "darkslategrey"}], [[-0.9363322856620461, -0.7057385322894372], "K", "left", {"color": "orange"}], [[0.19980282636923355, -1.1500800430753704], "L", "below right", {"color": "green"}], [[0.0, 0.0], "O", "above", {"color": "red"}]]}
Donner, si possible, le nom de l'angle opposé par le sommet à l'angle \(\widehat{FLK}\).