d. The Area of a Triangle
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E1-13 [Trigonometry: Proof of Area of a Triangle ½ absinC]
E1-13 [Trigonometry: Proof of Area of a Triangle ½ absinC]
E1-14 [Trigonometry: Finding the Area of Triangles]
E1-14 [Trigonometry: Finding the Area of Triangles]