Find all the angles formed at the intersection of two straight lines if the sum of the vertical angles at the intersection of others is 16.
| December 1, 2020 | education
when two straight lines intersect, four angles are formed (equal in pairs). Consider the first pair of angles, they are equal, because they are vertical, and because their sum is 16, then each of them is 16/2 ＝ 8. the other two angles are also vertical and therefore equal, and they are equal (180-16) / 2 ＝ 164/2 ＝ 82
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