Question

Two angles of a quadrilateral are 69 and 111 . If the other two angles are equal to find the equal angle

Answer 1

Answer:

let the equal angle be x

then

x+x+ 111+29=360 (sum of all angle of qualdrulateral)

2x+180=360

2x=180

x = 90

hence the two equal angles are 90 degree

Answer 2

Answer:

let the angles be X

then,

x +.x +69+111= 360°

2x =360-180

2x= 180

x = 180/2

x= 90°