题目内容
∠1+∠2+∠3=180°，其中∠1=52°，∠2=46°，那么∠3=
82°
82°
．分析：由于∠1+∠2+∠3=180°，可知∠3=180°-∠1-∠2，将∠1=52°，∠2=46°代入计算即可求解．
解答：解：∠3=180°-∠1-∠2，
=180°-52°-46°，
=82°．
故答案为：82°．
=180°-52°-46°，
=82°．
故答案为：82°．
点评：考查了角的和差计算，将∠1=52°，∠2=46°代入计算即可．
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