How do cross-contour lines explain form?
Answer and explanation
Correct answer: They show the direction moving across the surface
The governing concept is cross-contour drawing: a line travels across a form instead of merely tracing its outside edge. Its direction changes according to the form’s surface, so it can reveal whether the object is rounded, tilted, bulging, or narrowing. On a sphere, for instance, curved cross-contours help the eye read the surface as a globe; on a box, straighter lines reinforce its planes. Thus option A is correct. A title decoration does not explain structure, removing a light source is not the function of a line, and suitable cross-contours create depth rather than keeping every form flat.
Frequently asked questions
What is the correct answer to this question?
They show the direction moving across the surface
Why is this the correct answer?
The governing concept is cross-contour drawing: a line travels across a form instead of merely tracing its outside edge. Its direction changes according to the form’s surface, so it can reveal whether the object is rounded, tilted, bulging, or narrowing. On a sphere, for instance, curved cross-contours help the eye read the surface as a globe; on a box, straighter lines reinforce its planes. Thus option A is correct. A title decoration does not explain structure, removing a light source is not the function of a line, and suitable cross-contours create depth rather than keeping every form flat.
Which subject and chapter does this question cover?
This is a Class 9 Art Education question. Chapter: Elements of Art. Topic: Form.
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