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03角度04角度的計算(選擇01)
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年級
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其他
班級
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其他
(1) 如下圖,這三個角合起來是平角,算算看∠1 是幾度?
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48°
40°
56°
84°
(2) 下圖中的∠ㄅ和∠ㄆ合起來是幾度?
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120°
360°
150°
180°
(3) 下圖是用 2 個三角板所排出的圖形,算算看,∠1 是幾度?
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20 points
180°
120°
90°
60°
(4) 已知∠1+∠2+∠3 是一個平角,∠2+∠3 是一個直角,∠1 是幾度?
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45°
90°
270°
180°
(5) 如果把 3 個直角拼在一起,合起來的角會是幾度?
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20 points
180°
90°
270°
45°
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