什么是…的度数
<b>(i)</b>直角?
<b>(ii)</b>平角?

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要做的事情

我们必须找出…的度数

(i)直角

(ii)平角

解答

(i)直角的度数是 $90^o$。

(ii)平角的度数是 $180^o$。

<span class="date">更新于:</span>2022年10月10日

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