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| a right angle; right angle (an angle of ninety degrees, like any of the four angles in a square) | |||
| at right angle | |||
| right angle (right angles are angles that measure 90°) | |||
| right angle | |||
| straight angle | |||
| square corner | |||
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| right angles | |||
| Русский тезаурус | |||
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| угол, равный своему смежному. Большой Энциклопедический словарь | |||
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прямой угол : 406 фраз в 67 тематиках |