Xiaogang uses a magnifying glass that can magnify 10 times to measure that one angle of a right triangle is 78 degrees. Please help him calculate the degree of the other acute angle.
小刚用一个能放大10倍的放大镜量出一个直角三角形的一个角是78度，请帮他算出另一个锐角的度数．
<gadget id="calculator">90 - 78</gadget>
<output>12</output>

<result>12</result>