A base angle of an isosceles triangle is 32°, what is its apex angle?
等腰三角形的一个底角是32°，它的顶角是多少．
<gadget id="calculator">32 * 2</gadget>
<output>64</output>

<gadget id="calculator">180 - 64</gadget>
<output>116</output>

<result>116</result>