-Sine Rule for Acute and Obtuse Angled Triangle.
-Application of Sine Rule to Triangle.
-Cosine Rule for Acute and Obtuse Angled Triangle.
-Application of Cosine Rule.
1.Calculate the angles of the ∆s ABC whose sides are given in centimeters.Give the final answers to the nearest 0.10
a=5.2, b = 6.5cm ,c = 7.8
1.Calculate the smallest angle in the triangle PQR such that p = 7.92m, q= 15.9m and c= 8.44m.
2.Calculate the length of the side opposite the given angle in ∆ XYZ given that x =13.1m, y = 24.2m and Z = 47.80.