b=10
sides (a,b,c): 7, 10, 9.4873
angles (A,B,C): 42°, 72.921°, 65.079° is an acute scalene triangle
(x,y) Vertices: A (4.2137,9.0689) , B (7,0) , C (0,0)
Second solution:
sides (a,b,c): 7, 10, 5.3756
angles (A,B,C): 42°, 107.079°, 30.921° is an obtuse scalene triangle
(x,y) Vertices: A (8.5788,5.1386) , B (7,0) , C (0,0)