3.在下面点子图上画一个平行四边形和一个梯形.再画出它们的高. ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 查看更多

 

题目列表(包括答案和解析)

在下面点子图上画一个平行四边形和一个梯形,再画出它们的高.

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在下面点子图上画一个平行四边形和一个梯形,再画出它们的高.

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按要求在下面方格纸上画图形.(每个小方格表示1平方厘米)
(1)按2:1的比例画出三角形放大后的图形.
(2)画出房子图的另一半,使它成为一个轴对称图形.
(3)将平行四边形绕A点逆时针方向旋转90°,画出旋转后的图形.

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按要求在下面方格纸上画图形.(每个小方格表示1平方厘米)
(1)按2:1的比例画出三角形放大后的图形.
(2)画出房子图的另一半,使它成为一个轴对称图形.
(3)将平行四边形绕A点逆时针方向旋转90°,画出旋转后的图形.

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按要求在下面方格纸上画图形。(每个小方格表示1平方厘米)
(1)按2:1的比例画出三角形放大后的图形。
(2)以O为圆心,画一个直径3厘米的圆。
(3)画出房子图的另一半,使它成为一个轴对称图形。 
(4)将平行四边形绕A点逆时针方向旋转90,画出旋转后的图形。

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