1.

Two complementary angles differ by 12°,find the angles

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let the SMALLER no = x.
two complementary ANGLES DIFFER by = 12.
bigger number = (x+12)°.
complementary angles = 90°.
x+x+12°=90°
2x°+12°=90°
2x° = (90-12)°
2x° = 78°
x° = 78°/2°
x° = 39° =SMALLEST number.
(x+12)° = 39°+ 12° = 51° = BIGGEST number.
the angles are 39°,51°.


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