1994 AMC 8 Problem 4

Below is the professionally curated solution for Problem 4 of the 1994 AMC 8, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 1994 AMC 8 solutions, or check the answer key.

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Concepts:transformation

Difficulty rating: 660

4.

Which of the following represents the result when the figure shown at the right is rotated clockwise 120°120° about its center?

Solution:

A clockwise turn of 120°120° sends each shape to the next position clockwise: the triangle at the top moves to the lower right, the square at the lower right moves to the lower left, and the circle at the lower left moves to the top.

The result therefore has a circle on top, a square at the lower left, and a triangle at the lower right, with each shape keeping its original form.

Thus, the correct answer is B .

Problem 4 in Other Years

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