in the figure you can say ∠1 + ∠4 = 180° because both together make a line so you can say : 63° + ∠4 = 180° ⇒ ∠4 = 180° - 63 ° = 117 ° so the answer is : ∠4 = 117° :))) i hope this is helpful have a nice day
since j is a straight line, angle 1+angle 4=180 angle1=63 find angle 4 angle1+angle4=180 63+angle4=180 subtract 63 from both sidess angle4=117 the answer is 117 degrees