Will McGugan
@willmcgugan
Former presidential speech writer. Hyperborean Python expert, PSF fellow, author, humanist, husband. He/him @willmcgugan@mastodon.social
加入 April 2008
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@GithubProjects The two 150° angles sit on a straight line, so each pairs with a 30° angle next to it (180° − 150°).
Those two 30° angles meet in the middle, giving the red-marked angle:
30° + 30° = 60°.
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