Question: The area of a triangle ABC is calculated using the formula S = 1/2bc sin A and it is known that b, c and A

The area of a triangle ABC is calculated using the formula S = 1/2bc sin A and it is known that b, c and A are measured correctly to within 1%. If the angle A is measured as 45°, prove that the percentage error in the calculated value of S is not more than about 2.8%.

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S bc sin A s as Ab Ac b ac csin A Ab b sin A Ac 2 2 Ab Ac ... View full answer

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