(1)請?jiān)趫D中畫出△COD.并在所畫圖中標(biāo)出C點(diǎn)的坐標(biāo),(2)求A點(diǎn)在旋轉(zhuǎn)過程中所經(jīng)過的路程的長. 查看更多

 

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精英家教網(wǎng)如圖,在平面直角坐標(biāo)系中,B點(diǎn)在x軸上,∠AOB=60°,線段OA=6,將△AOB繞點(diǎn)O逆時(shí)針旋轉(zhuǎn)60°后,點(diǎn)A落在C點(diǎn)處,點(diǎn)B落在D點(diǎn)處.
(1)請?jiān)趫D中畫出△COD〔不寫畫法〕,并在所畫圖中標(biāo)出C點(diǎn)的坐標(biāo);
(2)點(diǎn)A旋轉(zhuǎn)過程中所經(jīng)過的路程的長.(結(jié)果保留整數(shù))

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如圖,在平面直角坐標(biāo)系中,B點(diǎn)在x軸上,∠AOB=60°,線段OA=6,將△AOB繞點(diǎn)O逆時(shí)針旋轉(zhuǎn)60°后,點(diǎn)A落在C點(diǎn)處,點(diǎn)B落在D點(diǎn)處.
(1)請?jiān)趫D中畫出△COD〔不寫畫法〕,并在所畫圖中標(biāo)出C點(diǎn)的坐標(biāo);
(2)點(diǎn)A旋轉(zhuǎn)過程中所經(jīng)過的路程的長.(結(jié)果保留整數(shù))

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如圖,在平面直角坐標(biāo)系中,B點(diǎn)在x軸上,∠AOB=60°,線段OA=6,將△AOB繞點(diǎn)O逆時(shí)針旋轉(zhuǎn)60°后,點(diǎn)A落在C點(diǎn)處,點(diǎn)B落在D點(diǎn)處.
(1)請?jiān)趫D中畫出△COD〔不寫畫法〕,并在所畫圖中標(biāo)出C點(diǎn)的坐標(biāo);
(2)點(diǎn)A旋轉(zhuǎn)過程中所經(jīng)過的路程的長.(結(jié)果保留整數(shù))

查看答案和解析>>


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