Question

plz tell it's urgent ​

Answer 1

step by step :

let <A =3x and,<C=7x

than according to question

as we know that sum of all angle of quadrilateral =360

than <a+<b+<C+<d=360

3x+65+7x+105=360

10x+170=360

10x=360-170

10x=190

x = 190/10

x=19 Answer