Given that one acute angle of a right triangle is 53°, what is the other acute angle?
已知直角三角形的一个锐角是53°，另一个锐角是多少°．
<gadget id="calculator">90 + 53</gadget>
<output>143</output>

<gadget id="calculator">180 - 143</gadget>
<output>37</output>

<result>37</result>