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In triangle ABC, cos A = 2/3 and cos B = 2/7. Given the perimeter of the triangle ABC is 24, compute the area of triangle ABC.

 Jun 6, 2020
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From the 2 angles and the perimeter of 24, the 3 sides are:

 

a =8, b =7 and c=9  for a perimeter of 24

 

Using Heron's formula:

 

Area = 26.833

 Jun 6, 2020

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