If the ratio of the two acute angles of a right triangle is 2:3, what is the measure of the larger acute angle?
直角三角形的两个锐角的比是2：3，则较大的那个锐角的度数是多少．
<gadget id="calculator">180 - 90</gadget>
<output>90</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">90 * (3/5)</gadget>
<output>54</output>

<result>54</result>