(2012•杭州)如图,在Rt△ABO中,斜边AB=1.若OC∥BA,∠AOC=36°,则( )A.点B到AO的距离为sin54° B.点B到AO的距离为tan36°C.点A到OC的距离为sin36°sin54° D.点A到OC的距离为cos36°sin54°
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![(2012•杭州)如图,在Rt△ABO中,斜边AB=1.若OC∥BA,∠AOC=36°,则( )A.点B到AO的距离为sin54° B.点B到AO的距离为tan36°C.点A到OC的距离为sin36°sin54° D.点A到OC的距离为cos36°sin54°](/uploads/image/z/8804347-43-7.jpg?t=%EF%BC%882012%26%238226%3B%E6%9D%AD%E5%B7%9E%EF%BC%89%E5%A6%82%E5%9B%BE%2C%E5%9C%A8Rt%E2%96%B3ABO%E4%B8%AD%2C%E6%96%9C%E8%BE%B9AB%3D1%EF%BC%8E%E8%8B%A5OC%E2%88%A5BA%2C%E2%88%A0AOC%3D36%C2%B0%2C%E5%88%99%EF%BC%88+%EF%BC%89A%EF%BC%8E%E7%82%B9B%E5%88%B0AO%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BAsin54%C2%B0+B%EF%BC%8E%E7%82%B9B%E5%88%B0AO%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BAtan36%C2%B0C%EF%BC%8E%E7%82%B9A%E5%88%B0OC%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BAsin36%C2%B0sin54%C2%B0+D%EF%BC%8E%E7%82%B9A%E5%88%B0OC%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BAcos36%C2%B0sin54%C2%B0)
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(2012•杭州)如图,在Rt△ABO中,斜边AB=1.若OC∥BA,∠AOC=36°,则( )A.点B到AO的距离为sin54° B.点B到AO的距离为tan36°C.点A到OC的距离为sin36°sin54° D.点A到OC的距离为cos36°sin54°
(2012•杭州)如图,在Rt△ABO中,斜边AB=1.若OC∥BA,∠AOC=36°,则( )
A.点B到AO的距离为sin54° B.点B到AO的距离为tan36°
C.点A到OC的距离为sin36°sin54° D.点A到OC的距离为cos36°sin54°
(2012•杭州)如图,在Rt△ABO中,斜边AB=1.若OC∥BA,∠AOC=36°,则( )A.点B到AO的距离为sin54° B.点B到AO的距离为tan36°C.点A到OC的距离为sin36°sin54° D.点A到OC的距离为cos36°sin54°
AO=sin54°,AC=AOsin36°=sin36°sin54°.所以:选B.