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## JSS3: BASIC TECHNOLOGY - 1ST TERM

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Lesson 7, Topic 2
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# Methods of Oblique Projection

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#### Topic Content:

• Methods of Oblique Projection
• Step-by-Step Oblique Drawing

The two methods of oblique projection are cavalier projection and cabinet projection

Cavalier Oblique Projection: In this projection, the receding axes (width) are drawn full size.

Cabinet Oblique Projection: the receding axes (width) are drawn half-size to reduce distortion, but they are dimensioned full-size. This is used to draw furniture i.e. cabinets.

Activity:

To draw a rectangular block of length 6cm, breadth 5.0cm and depth 2.0cm in oblique projection.

a. Construct the oblique axes with two right angles and the third at 45Â° to the horizontal.

b. Mark off on these axes, the length, breadth, and depth of the rectangular block.

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