In a right triangle, the ratio of the two acute angles is 1:8, what is the smallest acute angle in this triangle?
一个直角三角形，两个锐角的度数比是1：8，这个三角形中最小的锐角是多少°
<gadget id="calculator">1 + 8</gadget>
<output>9</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">90 * (1/9)</gadget>
<output>10</output>

<result>10</result>