In a triangle, one angle is 80° and the other two angles are equal in size. What is the measure of the two angles?
在一个三角形中，有一个角是80°，另外两个角的大小相等，这两个角的度数是多少．
<gadget id="calculator">180 - 80</gadget>
<output>100</output>

<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<result>50</result>