Question

please solve it quickly​

Answer 1

Answer:

x=90, angles=70,75,105,110

Step-by-step explanation:

sum of angles of quadrilateral=360

thus,x-20+x-15+x+15+x+20=360

4x=360, x=90

angles= 90-20,90-15,90+15,90+20

angles=70,75,105,110

Answer 2

Answer:

As we know that sum of all angles of quadrilateral is equal to 360°

(x-20)°+(x+20)°+(x-15)°+(x+15)°= 360°

or, 4x = 360

or, x = 90°

and all angles of quadrilateral are

70°,110°,75° and 105° respectively.