Question

hii frnds..

2nd one plz help

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thank u...☺

Answer 1

let the two larger angles be x+x=2x
sum of two supplementary angles is 180degree
so 2x=180
2x-18=270
2x=288
x=144degree

Answer 2

let the angles be X and Y. where X is greater than Y
x + y = 180 ( they are supplementary )
X = (180-Y).. (1)
According to question..
X - Y = 18
from equation(1)..
(180 - Y) - Y = 18
180 - 2Y = 18
-2Y = 18 - 180
-2Y = -162
Y = 162/2
Y = 81 degree Ans.
X = 180 - 81
=99degree ans.