新人教版三年级上册数学四边形整理复习

张图片的周长是多少? 15 厘米 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 知识拓展: 边长=周长÷4长=周长÷ 2-宽宽=周长÷ 2-长 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 李叔叔有一条长 24 分米的木条,用它刚刚做成了一个正方形的相框, 问李叔叔做好的相框边长是多少? Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd.