Given that ∠1 and ∠2 are two acute angles in a right triangle, when ∠1=55°, what is ∠2=?
已知∠1和∠2是直角三角形中的两个锐角，当∠1=55°时，∠2=多少．
<gadget id="calculator">180 - 90 - 55</gadget>
<output>35</output>

<result>35</result>