“A Rotating Fan” is a speed sense puzzle.

HOW TO PLAY?

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1. Observing the graphs of the target animation.

2. The horizontal coordinate represents time and the vertical coordinate represents the area of the sector.

3. Each color line is defined as follows:

Yellow, the area of a yellow sector

Black, the area of a black sector

Red, the area of yellow and black sectors combined.

Green, the area of yellow and black sectors intersect.

4. You need to find the exact sector animation corresponding to the area curve in the response area to succeed in the challenge.

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With your continued support we’ll do our best to turn out quality Apps.