MCQ
- Ax = 60º
- Bx = 50º
- Cx = 70º
- Dx = 45º
✓
Answer
- x = 50º
Solution:
(2x - 30)º = (x + 20)º (corresponding angle)
2x -30º = x + 20º
2x - x = 30º + 20º
x = 50º.
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