∠1 and ∠2 are two acute angles in a right triangle. It is known that ∠1=52°, ∠2=how many degrees
∠1和∠2是一个直角三角形中的两个锐角，已知∠1=52°，∠2=多少°
<gadget id="calculator">90 - 52</gadget>
<output>38</output>

<result>38</result>