The sine rule and cosine rule . The sine rule is used when we are given either a) two angles and one side, or b) two sides and a non-included angle. The cosine rule is used when we are given either a) three sides or b) two sides and the included Sine and cosine rule
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Sine Cosine and Area of triangle
Law of Cosines (also called the Cosine Rule) says: c2 = a2 + b2 − 2ab cos(C ). Law of Sines (or Sine Rule) is very useful for solving triangles: a sin A = b sin B = c … sine of angle B, and also equal to side c divided by the sine of […]
Sine and Cosine Rule
the Sine Rule to find unknown sides and angles; Use the Cosine Rule to find unknown sides and angles. Sine and Cosine rule
