(a) The triangle ABC has sides AB = 17m, BC = 12m and AC = 10m. Calculate the : (i) largest angle of the triangle ; (ii) area of the triangle. (b) From a po...

(a) The triangle ABC has sides AB = 17m, BC = 12m and AC = 10m. Calculate the :

(i) largest angle of the triangle ; (ii) area of the triangle.

(b) From a point T on a horizontal ground, the angle of elevation of the top R of a tower RS, 38m high is 63°. Calculate, correct to the nearest metre, the distance between T and S.