期刊论文详细信息
Crux mathematicorum with mathematical mayhem | |
MathemAttic: No. 2 | |
1  | |
DOI : | |
学科分类:数学(综合) | |
来源: Canadian Mathematical Society | |
【 摘 要 】
A rectangular sheet of paper is labelled ABCD, with AB being one ofthe longer sides. The sheet is folded so that vertex A is placed exactly on top ofthe opposite vertex C. The fold line is XY , where X lies on AB and Y lies onCD. Prove that the triangle CXY is isosceles.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO201910282131542ZK.pdf | 484KB | download |