HOW TO VISUALIZE THE 30 DEGREE RULE USING YOUR HAND Similar to the 90 degree rule, the 30 degree rule is demonstrated in this video. Your two forefingers in a V-shape are the best tools to use for visualizing this angle.
Similar to the 90 degree rule, the 30 degree rule is demonstrated in this video. Your two forefingers in a V-shape are the best tools to use for visualizing this angle.
