工人师傅用一块矩形铁皮剪出一个扇形,用这个扇形做成一个圆锥形水勺的侧面,在矩形ABCD中,AB=12cm,BC=12根号3cm,工人师傅以BC中点O为圆心,12cm长为半径在铁皮上画出一个最大的扇形,以这个扇形
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![工人师傅用一块矩形铁皮剪出一个扇形,用这个扇形做成一个圆锥形水勺的侧面,在矩形ABCD中,AB=12cm,BC=12根号3cm,工人师傅以BC中点O为圆心,12cm长为半径在铁皮上画出一个最大的扇形,以这个扇形](/uploads/image/z/10941836-68-6.jpg?t=%E5%B7%A5%E4%BA%BA%E5%B8%88%E5%82%85%E7%94%A8%E4%B8%80%E5%9D%97%E7%9F%A9%E5%BD%A2%E9%93%81%E7%9A%AE%E5%89%AA%E5%87%BA%E4%B8%80%E4%B8%AA%E6%89%87%E5%BD%A2%2C%E7%94%A8%E8%BF%99%E4%B8%AA%E6%89%87%E5%BD%A2%E5%81%9A%E6%88%90%E4%B8%80%E4%B8%AA%E5%9C%86%E9%94%A5%E5%BD%A2%E6%B0%B4%E5%8B%BA%E7%9A%84%E4%BE%A7%E9%9D%A2%2C%E5%9C%A8%E7%9F%A9%E5%BD%A2ABCD%E4%B8%AD%2CAB%3D12cm%2CBC%3D12%E6%A0%B9%E5%8F%B73cm%2C%E5%B7%A5%E4%BA%BA%E5%B8%88%E5%82%85%E4%BB%A5BC%E4%B8%AD%E7%82%B9O%E4%B8%BA%E5%9C%86%E5%BF%83%2C12cm%E9%95%BF%E4%B8%BA%E5%8D%8A%E5%BE%84%E5%9C%A8%E9%93%81%E7%9A%AE%E4%B8%8A%E7%94%BB%E5%87%BA%E4%B8%80%E4%B8%AA%E6%9C%80%E5%A4%A7%E7%9A%84%E6%89%87%E5%BD%A2%2C%E4%BB%A5%E8%BF%99%E4%B8%AA%E6%89%87%E5%BD%A2)
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