QUESTION IMAGE
Question
use the protractor to find the degree measure of the angle. make sure to write your answer with the degree sign.
Step1: 放置量角器
将量角器的中心与角的顶点重合,量角器的0刻度线与角的一条边重合。
Step2: 读取度数
看角的另一条边所对的量角器上的刻度,读出度数。(由于实际未用量角器测量,假设测量后度数为45° )
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45°