Discussion
Assertion: an isometric drawing is larger than a true isometric projection of the same object. Reason: the drawing uses true lengths where the projection applies the 0.816 ratio.
Answer: C
Using unreduced lengths inflates every dimension by the reciprocal of 0.816, which is about 22.5 per cent. Since the inflation is uniform the shape is unaffected, which is why the drawing is acceptable for most purposes.
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