Q5. Three angles of a quadrilateral are 34°, 70° and 126°. Find the fourth angle.
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let 4th angle be x
34+70+126+x=360
230+x=360
x=360-230
x=130°
hence 4th angle is 130°
34+70+126+x=360
230+x=360
x=360-230
x=130°
hence 4th angle is 130°
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1st angle=34
2nd angle=70
3rd angle=126
4th angle= x
angle1+angle2+angle3+angle4=360(because all angles of a quadrilateral add up to 360)
34+70+126+x=360
230+x=360
x=360-230=130
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2nd angle=70
3rd angle=126
4th angle= x
angle1+angle2+angle3+angle4=360(because all angles of a quadrilateral add up to 360)
34+70+126+x=360
230+x=360
x=360-230=130
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