9. Which angle is equal to twice its complement?10. Which angle is equal to two-third of its supplement?11. Given two angles are supplementary and one angle is 20° more than other. Find thetwo angles.12. Two complementary angles are in ratio 7:2. Find the angles.13. Two supplementary angles are in ratio 5:4. Find the angles.

9. Which angle is equal to twice its complement?10. Which angle is e

1.	9. Which angle is equal to twice its complement?10. Which angle is equal to two-third of its supplement?11. Given two angles are supplementary and one angle is 20° more than other. Find thetwo angles.12. Two complementary angles are in ratio 7:2. Find the angles.13. Two supplementary angles are in ratio 5:4. Find the angles.
Answer» -STEP explanation:9.supplementary angle10.60 DEGREE angle11.x+(x+20)=180 degree 2x + 20 = 180 degree 2x = 180 - 20 2x = 160 x = 160/2x = 80 degree check : 80 + (80+20)=180 80+100 = 180 180 = 180....it is confirmed12. 7:27+2=9then,i) 7/9×90= 70ii) 2/9×90 = 20 70+20=90...then, they R COMPLEMENTARY angles13.5:45+4= 95/9× 180 =100 4/9× 180 = 80 100+80=180....then, it is confirmed that they r supplementary anglesHOPE IT HELPS!!!!