In a triangle, it is known that ∠1=62°, ∠2=48°, ∠3=how much.
一个三角形中，已知∠1=62°，∠2=48°，∠3=多少．
<gadget id="calculator">62 + 48</gadget>
<output>110</output>

<gadget id="calculator">180 - 110</gadget>
<output>70</output>

<result>70</result>