Your answer is absolutely wrong because i am getting two values of x from two different ways . if you are confident about your question just tell from where you have brought this question
						

							Your answer x = 40°. You can solve it by theorem that a exterior angle of triangle is equal to two opposite interior angles.Take the small triangle in which x is present.
						

							Get my answer verified by your brother.                                                                   .........................................,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
						

							Please see that anything more is given in the question.Your answer 30 cannot be considered wrong because if we keep 30 at the place of x then all values seem to be correct but also try to keep anything between 10 and 100 then also all the values will be correct.I HAVE THINKED A LOT ON THIS QUESTION AND I WANT THAT WEATHER YOU CHECK THE QUESTION CAREFULLY OTHERWISE ASK FOR SOLUTION FROM YOUR TEACHER AND SHOW ME.
						

							My e mail id is : darpan5552@gmailYou can send me solution on thus email.                                                                                                                                                                                                                   .................................               ...............................