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Answer:
X IS 155°
Y IS 45°
Step-by-step explanation:
HERE (FE) IS PARALLEL TO (CD)
SO BY CO INTERIOR ANGLES
ANGLE (FCD) + ANGLE (EFC) MUST BE 180°
SO ANGLE (X) BE EQUAL TO 180- 25. I.E. 155°
NOW.......
AB IS PARALLEL TO (CD)
BY ALTERNATIVE INTERIOR ANGLES
ANGLE (ABC) MUST BE EQUAL TO ANGLE (BCD)
OR
75° IS EQUAL TO Y + 25°
SO ANGLE Y IS 75-25 I.E. 45°
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