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How to Visualize the 30 degree rule using your hand

"How to Visualize the 30 degree rule using your hand" cover image

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.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.

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