Question

in a quadrilateral ,three angles are 55 degree,65 degree,150 degree.Then find the fourth angle
with explanation​

Answer 1

Answer:

sum of all angles of a quadrilateral is 360°

therefore

55+65+150+x= 360°

270+x= 360°

x=360°-270°

x=90°

Answer 2

the ans with explainntion is in attachment