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cristinamiu8169
28.06.2019 •
Mathematics
Employees at an office were surveyed about what types of hot beverages they drank that day. it was found that 50% of them drank coffee and 25% drank tea. the survey showed that 10% of the employees drank both coffee and tea.
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Ответ:
1) complementary angles
2) supplementary angles
Step-by-step explanation:
1)
25 + 65 = 90
therefore given angles are complementary angles
2) 120+60=180, supplementary angles
3)