It is known that in △ABC, ∠A=35°, ∠B=2∠A, ∠C=how much.
已知△ABC中，∠A=35°，∠B=2∠A，∠C=多少．
<gadget id="calculator">2 * 35</gadget>
<output>70</output>

<gadget id="calculator">180 - 35 - 70</gadget>
<output>75</output>

<result>75</result>