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歡迎您訪問數學考題練習:圖(a)、圖(b)是三張形狀.大小完全相同的方!

數學考題練習:圖(a)、圖(b)是三張形狀.大小完全相同的方

更新時間:2024-01-12 16:25:02作者:貝語網校

圖(a)、圖(b)是三張形狀.大小完全相同的方格紙,方格紙中的每個小正方形的邊長均為1.請在圖(a)、圖(b)中,分別畫出符合要求的圖形,所畫圖形各頂點必須與方格紙中的小正方形頂點重合.具體要求如下:

(1)畫一個面積為10的等腰直角三角形;

(2)畫一個面積為12的平行四邊形.

試題答案

解:答案不唯一.

試題解析

(1)畫一個面積為10的等腰直角三角形只需讓其等腰直角三角形的直角邊等于即可;

(2)畫一個面積為12的矩形后再通過平移一對對邊得到平行四邊形.

點評:本題考查了勾股定理、等腰直角三角形的性質及平行四邊形的性質,特別是在畫平行四邊形時,更應注意特別的方法.

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