题目内容
如图所示:
(1)图中可以用一个大写字母表示的角是______;
(2)以A为顶点的角是______;
(3)图中共有______个角,它们分别是______.
(1)图中可以用一个大写字母表示的角是______;
(2)以A为顶点的角是______;
(3)图中共有______个角,它们分别是______.
(1)图中可以用一个大写字母表示的角是∠B、∠C;
(2)以A为顶点的角是∠BAD、∠DAC、∠BAC;
(3)图中共有8个角,它们分别是:∠B、∠C、∠BAD、∠DAC、∠BAC、∠ADB、∠ADC、∠BDC.
故答案是:∠B、∠C;∠BAD、∠DAC、∠BAC;∠B、∠C、∠BAD、∠DAC、∠BAC、∠ADB、∠ADC、∠BDC.
(2)以A为顶点的角是∠BAD、∠DAC、∠BAC;
(3)图中共有8个角,它们分别是:∠B、∠C、∠BAD、∠DAC、∠BAC、∠ADB、∠ADC、∠BDC.
故答案是:∠B、∠C;∠BAD、∠DAC、∠BAC;∠B、∠C、∠BAD、∠DAC、∠BAC、∠ADB、∠ADC、∠BDC.
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