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What problem occurs if the pencil is tilted toward the object rather than held in the picture plane while measuring an angle?

Answer and explanation

Correct answer: The observed angle may become distorted

The governing concept is projection in a fixed picture plane. When measuring an angle, the pencil should be held parallel to the picture plane and aligned with the observed edges. Tilting it toward the object changes the viewing geometry, so the pencil no longer represents the same projected angle seen by the eye. The reading can therefore be distorted, making option D correct. The error does not darken a shadow, enlarge the object itself or improve texture.

Related tags

Object ObservationAngle MeasurementPicture PlanePencil TechniqueDrawing BasicsArt EducationClass 9 Mcq

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