Question

Give Answer and solve any One only​

Answer 1

Answer:

(ii) Let the smaller angle be x.

And larger be (x + 18°)

Now,

x + x + 18° = 180°

2x + 18° = 180°

2x = 180° - 18°

2x = 162°

x = 162°/2

x = 81°

Hence, smaller angle = 81°

Larger angle = (81+18)° = 99°

Answer 2

Answer:

let larger angle = x

and smaller angel =y

According to the question

x+y =180. eq. i

x-y =18. eq. ii

x = 18+y

putting value of x in eq.i

x+y=180

(18+y) + y = 180

18+2y= 180

2y=180-18

2y=162

y=162/2

y=81°

in eq.ii

x-y=18

x-81=18

x=18+81

x=99°