SOLUTION: How many sides do you need to know the length of a triangle in order to calculate its area

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Question 829906: How many sides do you need to know the length of a triangle in order to calculate its area

Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
You need 3 sides unless you have additional information.
If you have two sides and an included angle you can
determine the length of the third angle.