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A math problem in the fourth grade of primary school: in a right triangle, the degree of one acute angle is twice that of the other acute angle. What are the two acute angles?
Let one of the acute angles be x,

The other acute angle is 2X.

Because in a right triangle,

So 90+3X= 180.

The solution is x = 30.

One acute angle is 30 degrees.

The other acute angle is 60 degrees.

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