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Multiple Choice

A basic orthographic projection shows an object from how many different views?

In orthographic projection, you communicate an object’s true size and shape by showing it from several perpendicular directions, so there’s no perspective distortion. For a basic set, you typically include four principal views: the front, the top, and the two sides (left and right). Each view exposes two dimensions—front shows width and height, top shows width and depth, and the side views show height and depth. Taken together, these four views give a complete description of the geometry and allow direct measurement of all features. A back view isn’t usually included in the basic four-view set because it’s redundant with the other views or can be inferred. Two views wouldn’t reveal depth, and eight or twelve would go beyond the basic, more than what’s needed to describe a simple part.

In orthographic projection, you communicate an object’s true size and shape by showing it from several perpendicular directions, so there’s no perspective distortion. For a basic set, you typically include four principal views: the front, the top, and the two sides (left and right). Each view exposes two dimensions—front shows width and height, top shows width and depth, and the side views show height and depth. Taken together, these four views give a complete description of the geometry and allow direct measurement of all features. A back view isn’t usually included in the basic four-view set because it’s redundant with the other views or can be inferred. Two views wouldn’t reveal depth, and eight or twelve would go beyond the basic, more than what’s needed to describe a simple part.