Question

8. Two supplementary angles are in the ratio 5:13. The angles are- a) 25°, 65° c) 50°. 130° b) 130°, 50° d) 90°, 100°​

Answer 1

Answer:

c) 50°, 130°

Step-by-step explanation:

Let the supplementary angles be 5x and 13x

5x + 13x = 180°

18x = 180

x = 180/18

x = 10°

∴ The two supplementary angles :

   5x = 5 × 10 = 50°

   13x = 13 × 10 = 130°