∠1, ∠2, ∠3 are the three angles of a triangle. Given that ∠1=80°, ∠2=54°, find ∠3.
∠1、∠2、∠3是三角形的三个角已知∠1=80°，∠2=54°，求∠3．
<gadget id="calculator">80 + 54</gadget>
<output>134</output>

<gadget id="calculator">180 - 134</gadget>
<output>46</output>

<result>46</result>