Question

Can u plz help me doing the 8 question

Answer 1

90+90+ x -20 +x= 360

2x= 200
x= 100

90,90,100,80

Answer 2

Angle sum property=360degrees

LET one angle be x.

Other angle = x-20 degrees

A.s.p=90 degrees + 90 degrees + x + x-20 = 360 degrees

160 degrees +2x = 360 degrees

(360-160 degrees)2=x

100 degrees=x

Third interior angle = x-20=80 degrees

Fourth interior angle=x=100 degrees