An isosceles triangle has an interior angle of 60°, the sum of the two sides of the triangle is how many times the other side.
一个等腰三角形有一个内角为60°，这个三角形的两边之和是另一边的多少倍．
<gadget id="calculator">2 / 1</gadget>
<output>2</output>

<result>2</result>