Question

please solve it appropriate answer will marked as brainlist and correct answer is 80°​

Answer 1

Step-by-step explanation:

The angle <QRS can be found by substracting 100° from 180° as they lie in a straight line. Now the sum of all the angles in a quadrilateral us 360°. Hence when we add all the angles and equate to 360° we get the value of x as 80°.