Mom gave Xiao Ming an isosceles triangle kite, one of its base angles is 65°, what is its top angle?
妈妈送给小明一个等腰三角形的风筝，它的一个底角是65°，它的顶角是多少°．
<gadget id="calculator">65 * 2</gadget>
<output>130</output>

<gadget id="calculator">180 - 130</gadget>
<output>50</output>

<result>50</result>