Driver's License Test Prep
Illinois Practice Road Signs

A stop sign has how many sides?

  1. A.
    Eight Correct
  2. B.
    Four
  3. C.
    Six
  4. D.
    Three
The Why

The answer is "Eight"

A stop sign is a red octagon, and its eight-sided outline lets you recognize it even from behind or when snow covers the face. Choice D trips readers who pair the octagon count with the three-sided yield sign printed just next to it in the same shapes list.

Why the others miss

The traps in the wrong answers

B. Four

A four-sided sign is a square or rectangle, which the manual reserves for regulatory or guide signs. This answer defaults to the most common roadside shape when the specific count slips.

C. Six

The manual does not describe a six-sided stop sign anywhere in the shapes list. This answer splits the difference between a square and an octagon on a shaky recall.

D. Three

The three-sided sign in the manual is the yield sign, not the stop sign. This answer swaps the yield triangle count into the stop-sign row because both sit in the same shapes list.

The Rule

This question tests your knowledge of Road Signs in Illinois. Source: Illinois Rules of the Road, "Shapes of Signs," p.63..

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