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... • When two sides of a triangle and the angle between them are known the Law of Cosines is useful. It is also useful if all three sides of a triangle are known. • The Law of Sines is useful when we know a side and the angle opposite it and one other angle or one other side. • The Ambiguous Case: Ther ...
... • When two sides of a triangle and the angle between them are known the Law of Cosines is useful. It is also useful if all three sides of a triangle are known. • The Law of Sines is useful when we know a side and the angle opposite it and one other angle or one other side. • The Ambiguous Case: Ther ...
