Question: COS A = 5 + C - 2- a2 = b2 + c2 - 2bc cos A 2bc 1. Given the information on the diagram,

 COS A = 5 + C - 2- a2 = b2

COS A = 5 + C - 2- a2 = b2 + c2 - 2bc cos A 2bc 1. Given the information on the diagram, find the length of side f. [5 marks] f = ? E d = 24m e = 30 m 2. Given the information on the diagram, find the angle O. [5 marks] 33 m C 28 m 22 m B

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