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Spaced repetition: each system comes back just before you would forget it. Fast, correct answers stretch the interval; a miss brings it back the same day.

Free practice: Three-times-angle rule (draw)Score 0/0
12
On the table, the ringed ball is your ball (1). 2 = the ball your cue ball hits first, 3 = the last ball to hit for the point.
Three-times-angle rule (draw)
Deflection angle = 3 × cut angle (cut angle 0°–40°)
Your ball:White(cue ball · 1)
Ball 2Red
Expected shot:Three-times-angle rule (draw)Ball first

The cue ball hits ball 2 first, then travels the cushions in order to ball 3.

Given:
Ball fraction1/2
In this position, what is Deflection angle (°)?

Task: put the given values into the system's formula and calculate Deflection angle (°). Enter the answer in degrees, as a number only.