8、如图,从一个半径为1的圆形铁皮中剪下一个圆心角为90°的扇形BAC. (1)求这个扇形的面积;8、如图,从一个半径为1的圆形铁皮中剪下一个圆心角为90°的扇形BAC.(1)求这个扇形的面积
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/16 08:35:45
![8、如图,从一个半径为1的圆形铁皮中剪下一个圆心角为90°的扇形BAC. (1)求这个扇形的面积;8、如图,从一个半径为1的圆形铁皮中剪下一个圆心角为90°的扇形BAC.(1)求这个扇形的面积](/uploads/image/z/11374044-60-4.jpg?t=8%E3%80%81%E5%A6%82%E5%9B%BE%2C%E4%BB%8E%E4%B8%80%E4%B8%AA%E5%8D%8A%E5%BE%84%E4%B8%BA1%E7%9A%84%E5%9C%86%E5%BD%A2%E9%93%81%E7%9A%AE%E4%B8%AD%E5%89%AA%E4%B8%8B%E4%B8%80%E4%B8%AA%E5%9C%86%E5%BF%83%E8%A7%92%E4%B8%BA90%C2%B0%E7%9A%84%E6%89%87%E5%BD%A2BAC%EF%BC%8E+%EF%BC%881%EF%BC%89%E6%B1%82%E8%BF%99%E4%B8%AA%E6%89%87%E5%BD%A2%E7%9A%84%E9%9D%A2%E7%A7%AF%EF%BC%9B8%E3%80%81%E5%A6%82%E5%9B%BE%2C%E4%BB%8E%E4%B8%80%E4%B8%AA%E5%8D%8A%E5%BE%84%E4%B8%BA1%E7%9A%84%E5%9C%86%E5%BD%A2%E9%93%81%E7%9A%AE%E4%B8%AD%E5%89%AA%E4%B8%8B%E4%B8%80%E4%B8%AA%E5%9C%86%E5%BF%83%E8%A7%92%E4%B8%BA90%C2%B0%E7%9A%84%E6%89%87%E5%BD%A2BAC%EF%BC%8E%EF%BC%881%EF%BC%89%E6%B1%82%E8%BF%99%E4%B8%AA%E6%89%87%E5%BD%A2%E7%9A%84%E9%9D%A2%E7%A7%AF)
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