Question

the two adjacent angle of a quadrilateral 80 degree and 120 degree the other two angles are equal find them

Answer 1

let the first angle be x
by the question
for first angle (x+80 +100 =360)
degree
so, x+180=360
x =360-180 degree
=180 degree
the equal angle =180/2=90 degree
so 90+90+80+100=360 degree
360=360 degree ans

Answer 2

let the first angle be x
by the question
for first angle (x+80 +100 =360)
degree
so, x+180=360
x =360-180 degree
=180 degree
the equal angle =180/2=90 degree
so 90+90+80+100=360 degree
360=360 degree ans