Question

The larger of two supplementary angles exceeds the smaller by 18 degree . find the angles​

Answer 1

Let larger supplementary angle=x

Another angle=y

ATQ

x+y=180. equation 1

x=y+18

putting this value in equation 1

y+18+y=180

2y=180-18

2y=162

y=81

x=y+18

x= 81+18

x= 99

and 99+81=180

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Answer 2

Answer:

supplementary angle means , angles add up to 180.

therefore , let the larger angle be - x

and the smaller angle be - x-18

now,

x+(x-18) = 180

x + x - 18 = 180

2x = 180 + 18

2x = 198

x = 198/2

x= 99

now,

x=99

x-18 = 99-18

=81

therefore , the two angles are 81 and 99

hope this helps u..mm