Question

9. An exterior angle of a triangle is 80° 1 pointand the interior opposite angles are inthe ratio 1/3 measure of interioropposite angles are *
30 degrees, 90 degrees
40 degrees, 120 degrees
20 degrees, 60 degrees
30 degrees, 60 degrees ​

Answer 1

Answer:

(IV) 30/60=1/2

Step-by-step explanation:

(I) 30/90 = 3/9=1/3

(II) 40/120= 4/12=1/3

(III) 20/60= 2/6=1/3

(IV) 30/60=3/6=1/2