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Answer:
6x+11x+12x+7x=360
36x=360
x=10
6x=60
11x=110 degree
12x=120 degree
7x=70 degrees
largest angle =120
Step-by-step explanation:
let us take x for the angles
we know that sum of angles of a quadrilateral is 360
so
6x+11x+12x+7x=360
36x=360
x=10
now let's subs the value
6x=6×10=60
11x= 11×10=110
12x=12×10=120
7x= 7×10=70
hence the largest angle is 120degrees
hope this helps u... thanks