1.
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| 1 | 1 | |
| 2 | 2 | |
| 3 | 3 | |
| 1 | 1 | |
| 2 | 2 | |
| 3 | 3 | |
| storona1 | ||
| b | storona2 | |
| storona3 | ||
| perimetr | ||
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2.
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| storona1 | ||
| b | storona2 | |
| c | storona3 | |
| p | poluperimetr | |
| s | square |
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