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Vectors: magnitude, direction and products

Use a cross-product magnitude for triangle area · Diagrams

Two sides and their included triangle angle

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Triangle ABC has sides AB and AC with common vertex A and included angle θ. The scalar area is half the magnitude of AB×AC. No numerical coordinates or lengths are supplied.
Triangle ABC has sides AB and AC with common vertex A and included angle θ. The scalar area is half the magnitude of AB×AC. No numerical coordinates or lengths are supplied.
Triangle ABC has sides AB and AC with common vertex A and included angle θ. The scalar area is half the magnitude of AB×AC. No numerical coordinates or lengths are supplied.
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