You can put this solution on YOUR website! LET The First Angle be x degree then the other will be ( 90-x )degree
(As two angles are said to be complementary if their total is 90 degrees.)
According to condition of the question we make equation
90-x = 3x + 30
=> 90-30 =3x + x
=> 60 = 4x
=> x = 60/4
hence x = 15
Therefore first angle of 15 degrees and other is of 75 degrees.
hope u will uderstand
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