Answer: 117 degrees
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Explanation:
Notice how angles 1 and 4 combine to form a straight line, or straight angle. This angle that forms is 180 degrees.
So,
(angle1)+(angle4) = 180
(63) + (angle4) = 180
angle4 = 180-63
angle4 = 117 degrees
Note: The fact that lines j and k are parallel does not effect the answer. We could make j and k nonparallel lines to get the same result.
