In a third-angle projection, the quadrant of visualization from which the object derives its views is the lower right quadrant, also known as the third quadrant.

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In third-angle projection, the object is imagined to be in the third quadrant, meaning it is below and behind the viewing planes. This results in the top view being projected below the front view and the right view being projected to the left of the front view, consistent with the perspective from the third quadrant.

In a Third-Angle Projection, the Quadrant of Visualization from Which