The ratio of the two acute angles of a right triangle is 11:7, so what is the larger acute angle?
一个直角三角形的两个锐角度数的比是11：7，那么较大的锐角是多少度．
<gadget id="calculator">180 - 90</gadget>
<output>90</output>

<gadget id="calculator">11 + 7</gadget>
<output>18</output>

<gadget id="calculator">11 / 18</gadget>
<output>11/18 = around 0.611111</output>

<gadget id="calculator">90 * (11/18)</gadget>
<output>55</output>

<result>55</result>