问题
填空题
若正n边形的每个内角都等于150°，则n=______，其内角和为______．
答案
∵正n边形的每个内角都等于150°，
∴每个外角都等于180°-150°=30°，
∴n=360÷30=12，
其内角和为（12-2）×180°=1800°．
故答案为：12，1800°．
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若正n边形的每个内角都等于150°，则n=______，其内角和为______．
∵正n边形的每个内角都等于150°，
∴每个外角都等于180°-150°=30°，
∴n=360÷30=12，
其内角和为（12-2）×180°=1800°．
故答案为：12，1800°．
| 根据短文内容，用方框中所给词语的适当形式填空，使文章通顺、完整。(每词限用一次) | |
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