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Question-187979




Question Number 187979 by Mingma last updated on 24/Feb/23
Answered by HeferH last updated on 24/Feb/23
80° = 40° + x  40° = x
$$\mathrm{80}°\:=\:\mathrm{40}°\:+\:{x} \\ $$$$\mathrm{40}°\:=\:{x} \\ $$

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