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Why is cross-contour line useful in form study?

Answer and explanation

Correct answer: It shows the direction, curvature, and sense of volume of a surface

Direct answer: A cross-contour line follows the turning direction of a surface and helps show curvature and volume, so B is correct. Imagine drawing curved lines across a sphere, cylinder, or rounded body. These lines appear to wrap around the form rather than merely trace its outside edge. They help the learner understand whether the surface bends, bulges, narrows, or turns away. A is wrong because cross-contours have an explanatory structural purpose, not merely decoration. C describes the opposite of their function: they do not erase the outer contour. D is unrelated because colour intensity is not measured by cross-contour lines. An outer contour tells us where an object ends, while a cross-contour tells us how its surface travels across that form. Memory cue: outer contour marks the edge; cross-contour wraps around the surface.

Related tags

Cross-Contour LineForm StudyCurvatureVolumeLineFundamentals Of Visual ArtsArt EducationClass 10 Mcq

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