• JackbyDev@programming.dev
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    2 days ago

    x + y + z + w = 360 because… Uh. I don’t remember what the terms to use are but it does. It’s a full circle. It’s 4 points and 4 angles.

    2 (x + y) = 360 because substitute x + y = z + w

    x + y = 180 because you divide each side by 2

    because x + y is 180, AOB is a line.

    That’s the best I can do. I may have forgotten a few steps about things you can’t assume.