Three angles of a quadrilateral are equal and its fourth angle is 120 . Find all the angles.
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Answer:
80 degree angles
Step-by-step explanation:
in a quadrilateral sum of all the angles are 360 degree
then if one angle is 120 and the other all are equal the this equation will work
3x+120=360
=3x=360-120=240
=x=240/3=80
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