In a right triangle, one acute angle is 150% of the other acute angle, so what is the other acute angle?
直角三角形，一个锐角度数是另一个锐角的150%，那么另一个锐角是多少度．
<gadget id="calculator">150 / 100</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">1 + (3/2)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">90 / (5/2)</gadget>
<output>36</output>

<result>36</result>