Question

One angle of a quadrilateral is 111 and other three angles are equal .Find these angles

Answer 1

let one angle be x then as given
angle 1 = angle 2 = angle3 =x
now we knw
sum of all angles of quadrilateral is 360
then x +x+x+111 = 360
3x +111=360
3x=360-111 =))) 3x = 249 =))) x= 249/3
x=))) 83

Hence other angles are 83
83 and 83

hope it hepped u