Question

Three angles of a quadrilateral are 110 degree,50 degree and 40 degree. Find the measure of its fourth angle. ​

Answer 1

Answer:

the sum of all angles of quadrilateral is 360 dregree

therefore, 110 dregree + 50 degree + 40 dregree +. x =360 degree

therefore 200 degree + x = 360 degree

therefore, x= 360-200

therefore,x=160

the measure of fourth angles is 160 degree