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180°-80°=100°
360°-100°=260°
○+○+✖︎+✖︎=260°
260°÷2=130°
○+✖︎=130°
180°-130°=50°
答え50° かな
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180°-80°=100°
360°-100°=260°
○+○+✖︎+✖︎=260°
260°÷2=130°
○+✖︎=130°
180°-130°=50°
答え50° かな
Users viewing this question
are also looking at these questions 😉
