在RT△ABC中,角C=90度,AC=3根号3,BC=9,点Q是边AC上的动点,(点Q不与点A,C重合),过点Q作QR平行于AB,交边BC于点R,再把△QCR沿着直线QR翻折得到△QPR,设AQ=x.(1)求∠PRQ的大小.(2)当点P落在斜边AB上时
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![在RT△ABC中,角C=90度,AC=3根号3,BC=9,点Q是边AC上的动点,(点Q不与点A,C重合),过点Q作QR平行于AB,交边BC于点R,再把△QCR沿着直线QR翻折得到△QPR,设AQ=x.(1)求∠PRQ的大小.(2)当点P落在斜边AB上时](/uploads/image/z/12959079-15-9.jpg?t=%E5%9C%A8RT%E2%96%B3ABC%E4%B8%AD%2C%E8%A7%92C%3D90%E5%BA%A6%2CAC%3D3%E6%A0%B9%E5%8F%B73%2CBC%3D9%2C%E7%82%B9Q%E6%98%AF%E8%BE%B9AC%E4%B8%8A%E7%9A%84%E5%8A%A8%E7%82%B9%2C%EF%BC%88%E7%82%B9Q%E4%B8%8D%E4%B8%8E%E7%82%B9A%2CC%E9%87%8D%E5%90%88%EF%BC%89%2C%E8%BF%87%E7%82%B9Q%E4%BD%9CQR%E5%B9%B3%E8%A1%8C%E4%BA%8EAB%2C%E4%BA%A4%E8%BE%B9BC%E4%BA%8E%E7%82%B9R%2C%E5%86%8D%E6%8A%8A%E2%96%B3QCR%E6%B2%BF%E7%9D%80%E7%9B%B4%E7%BA%BFQR%E7%BF%BB%E6%8A%98%E5%BE%97%E5%88%B0%E2%96%B3QPR%2C%E8%AE%BEAQ%3Dx.%EF%BC%881%EF%BC%89%E6%B1%82%E2%88%A0PRQ%E7%9A%84%E5%A4%A7%E5%B0%8F.%EF%BC%882%EF%BC%89%E5%BD%93%E7%82%B9P%E8%90%BD%E5%9C%A8%E6%96%9C%E8%BE%B9AB%E4%B8%8A%E6%97%B6)
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