the fourth angle of a quadrilateral having three angles as 72 degree 36 degree 54 degree is what
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forth angle is 18 degree
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sum of all the angles of quadrilateral is 360°
now,
1st angle is 72°
2nd angle is 36°
3rd angle is 54°
let the 4th angle be x
ATP
72°+36°+54°+x=360°
162°+x=360°
×=360°-162°=198°
4th angle = 198°
now,
1st angle is 72°
2nd angle is 36°
3rd angle is 54°
let the 4th angle be x
ATP
72°+36°+54°+x=360°
162°+x=360°
×=360°-162°=198°
4th angle = 198°
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