In a right triangle, the ratio of the two acute angles is 1:5, what is the measure of the larger acute angle?
一个直角三角形中，两个锐角度数的比是1：5，较大的锐角的度数是多少．
<gadget id="calculator">1 + 5</gadget>
<output>6</output>

<gadget id="calculator">90 / 6</gadget>
<output>15</output>

<gadget id="calculator">15 * 5</gadget>
<output>75</output>

<result>75</result>