Americans might not know that 30°C is pretty hot, but why should Americans know exactly how cold -40°C is?
hint: it's not the freezing point or boiling point of anything important to this question and it's not the coldest point any place has reached.
Answer: (Drag mouse from left arrow to right)
> Because -40°C = -40°F. That is the only point that is equal on both scales.
If you want to check, the formula is °C x 9/5 +32 = °F. <
If you want to check, the formula is °C x 9/5 +32 = °F. <
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