Question

if two supplementary angles ratio 4 : 5 , then angles are

Answer 1

 sum of the supplementary angles  = 180°
let the constant be x
than the first angle = 4x
and the second angle = 5x
the sum of both the angle = 180°
∴ 4x + 5x = 180°
   ⇒ 9x = 180°
   ⇒ x = 180/9
   ⇒ x = 20

∴ the first angle = 4x = 4×20 = 80°
   and the second angle = 5x = 5 × 20 =100°

Answer 2

Step-by-step explanation:

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