Section: Quantitative
12)
| ABCD is a line segment and BE ┴ CE |
|
| A | | B |
| | | |
| x + y | | 90 |
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Explanation
Angle BEC is a right angle, therefore w + z = 90. Since w + x + z + y = 360 and w + z = 90, then x + y = 270.
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