| Title: | Jak se také dá poznat pravoúhlý trojúhelník (Czech) |
| Title: | Another way of recognizing right triangle (English) |
| Author: | Calda, Emil |
| Language: | Czech |
| Journal: | Učitel matematiky |
| ISSN: | 1210-9037 |
| Volume: | 21 |
| Issue: | 3 |
| Year: | 2013 |
| Pages: | 159-161 |
| Summary lang: | English |
| . | |
| Category: | math |
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| Summary: | The author presents a proof that when given triangle $ABC$, point $P \neq S$ is a foot of a perpendicular from $C$ on $AB$, and $S$ is the middle of $AB$, then if angle $ACS$ equals angle $PCB$, then angle $BCA$ is a right one. (English) |
| MSC: | 97G40 |
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| Date available: | 2022-03-09T14:33:55Z |
| Last updated: | 2022-03-09 |
| Stable URL: | http://hdl.handle.net/10338.dmlcz/149505 |
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| Files | Size | Format | View |
|---|---|---|---|
| UcitelMat_021-2013-3_3.pdf | 1.041Mb | application/pdf |
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