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| Subject | Russian | English |
| math. | смежные углы | contiguous angles |
| math. | смежные углы | supplementary adjacent angles have a common vertex and a common side and their sum is equal to 180 deg |
| el. | смежные углы | vertical angles |
| phys. | смежные углы | adjoining angles |
| math. | смежные углы | adjacent supplementary angles |
| tech. | смежные углы | adjacent angles |
| transp. | смежный угол | continuous angle |
| el. | смежный угол | adjacent angle |
| mining. | смежный угол | contact angle |
| math. | смежный угол | adjoining angle |
| math. | смежный угол | supplementary angle (A pair of angles is supplementary if the sum of their measures is 180°. Сумма смежных углов равна 180°. Saaska) |
| math. | смежный угол | adjacent angle (Adjacent angles are two coplanar angles having a common vertex and a common side, but no common interior points.) |
| tech. | смежный угол | contiguous angle |