ASVAB · Mental Rotation

If you rotate a square 90 degrees, the resulting shape is:

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Correct answer

Still the same square (just oriented differently)

A A larger square
B A circle
C Still the same square (just oriented differently)
D A triangle

Why this is the answer

Rotating a square 90 degrees produces the SAME SQUARE, just oriented differently — its size and shape are unchanged. ASVAB Assembling Objects tests understanding that ROTATION doesn't change a shape's identity or size, only its orientation. A square looks the same after a 90° turn (due to its symmetry); other shapes look turned but remain the same shape and size. This principle underlies the section: shapes in answer choices may be rotated to various angles but must remain the same shapes. Recognizing a shape regardless of rotation — while it stays the same size and form — is fundamental.

Source: ASVAB Assembling Objects — Rotation Basics

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About this topic: Mental Rotation

Mental rotation is the core skill of Assembling Objects: recognising a shape after it has been turned but not flipped. Answer choices that are mirror images are the standard trap — a rotated shape is never its own mirror image unless it is symmetrical. This is one of 13 Assembling Objects questions on mental rotation, each with a full explanation on a single study page.

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If you rotate a square 90 degrees, the resulting shape is:

Why this is the answer

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About this topic: Mental Rotation

Related questions

What is mental rotation, and why is it useful for the Assembling Objects subtest?

If a shape is rotated 90 degrees clockwise, where does its top edge end up?

If a shape has rotational symmetry (looks identical after rotation), how does this affect AO questions?

A flat cross-shaped net (a shape that folds into a cube) has specific symbols on different faces. When assembled, which faces will be opposite each other?

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