03扇形03認識分數圓心的扇形(選擇01)
年級 *
26 points
班級 *
26 points
座號 *
27 points
(1) 一個1/8圓的扇形,圓心角是多少度?
3 points
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(2) 將一個圓對摺三次後,所得的扇形是幾分之幾圓?
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(3) 圓心角60度的扇形,也可說是幾分之幾圓?
3 points
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(4) 圓心角120度的扇形,是幾分之幾的圓?
3 points
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(5) 圓心角150度的扇形,是幾分之幾的圓?
3 points
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(6) 一個2/9圓的扇形,圓心角是幾度?
3 points
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(7) 1/3圓的扇形對摺後,會變成幾分之幾圓?
3 points
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