One angle of a quadrilateral is 150 degrees. The other three angles are all the same size. How big are they? *
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Answer:
70 degrees
Step-by-step explanation
sum of angles of quadrilateral is 30 degrees
1st angle=150
let other three angles be x (all are equal)
then 150+x+x+x=360
3x= 360-150
3x= 210
x=70
hence other angles are of 70 degrees
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