Question

PLS ANSWER THIS PROPERLY​

Answer 1

Answer:

u can use angle sum property by making triangles...

Answer 2

Answer:

x=80°

Step-by-step explanation:

in quadrilateral ABCD

angle A=90°; angle B=45°; angle C=145°; angle D=x

Since, sum of angles A, B, C, D=360°

Therefore, 90+45+145+x=360

280+x=360

x=360-280

x=80°