如图,等腰梯形ABCD中,AD||BC,AD=AB=CD=2,∠C=60° 1.求证:BC=2AD 2.取BC的中点M连接MD.①证明△MDC是等1.求证:BC=2AD2.取BC的中点M连接MD.①证明△MDC是等边三角形②将△MDC绕点M旋转,当MD(即MD')与AB交于
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![如图,等腰梯形ABCD中,AD||BC,AD=AB=CD=2,∠C=60° 1.求证:BC=2AD 2.取BC的中点M连接MD.①证明△MDC是等1.求证:BC=2AD2.取BC的中点M连接MD.①证明△MDC是等边三角形②将△MDC绕点M旋转,当MD(即MD')与AB交于](/uploads/image/z/8571472-16-2.jpg?t=%E5%A6%82%E5%9B%BE%2C%E7%AD%89%E8%85%B0%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2CAD%7C%7CBC%2CAD%3DAB%3DCD%3D2%2C%E2%88%A0C%3D60%C2%B0+1.%E6%B1%82%E8%AF%81%EF%BC%9ABC%3D2AD+2.%E5%8F%96BC%E7%9A%84%E4%B8%AD%E7%82%B9M%E8%BF%9E%E6%8E%A5MD.%E2%91%A0%E8%AF%81%E6%98%8E%E2%96%B3MDC%E6%98%AF%E7%AD%891.%E6%B1%82%E8%AF%81%EF%BC%9ABC%3D2AD2.%E5%8F%96BC%E7%9A%84%E4%B8%AD%E7%82%B9M%E8%BF%9E%E6%8E%A5MD.%E2%91%A0%E8%AF%81%E6%98%8E%E2%96%B3MDC%E6%98%AF%E7%AD%89%E8%BE%B9%E4%B8%89%E8%A7%92%E5%BD%A2%E2%91%A1%E5%B0%86%E2%96%B3MDC%E7%BB%95%E7%82%B9M%E6%97%8B%E8%BD%AC%2C%E5%BD%93MD%EF%BC%88%E5%8D%B3MD%27%EF%BC%89%E4%B8%8EAB%E4%BA%A4%E4%BA%8E)
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