排序方式： 共有1条查询结果，搜索用时 0 毫秒
1
1.
SHRAGA YESHURUN DAVID C. KAY 《International Journal of Mathematical Education in Science & Technology》2013,44(5):583-588
Many teachers and textbooks mention ‘three and a half basic congruence theorems: SAS, ASA, SSS and HL for right triangles. Why do they neglect the SSA theorem? A recent article [1] investigated the SSA theorem, but it seems necessary to extend and, in one point, to correct the result given there. 相似文献
1