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The difference between the two acute angles of a right-angled triangle is 2(pie)/5 radians. Express the angles in degrees?? How to Solve it

so let one angle be x
then the other is x+72

we know x + x+72 = 90
2x = 18
x = 9

So the two angles are 9° and 81°

x+9+81=90
x+90=90
x=90-90
x=o

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