Question

which of the following angle is 20 degree less than its supplement ​

Answer 1

Let the two angles be X & y

x+y=180

x-y=20

Therefore, x=100 & y=80

HOPE THIS HELPS YOU

Answer 2

Answer:

Step-by-step explanation: let the Supplementary angle is X and Y. So, X+Y=180.....1)

X–Y=20 ......2)

from first and second we get

X=100°. ,Y=80°