Help  why is it 3600 times 2 and not just 3600?

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[Originally posted in the Discussions]
Ok so I know about the triangle explanation for the question as to why it's 60 times 5280 times 2.2 over 3600 times 2 but in reality why is it 3600 times 2 and not just 3600?

Great question! Similarly to the graph drawn in the explanation, the distance covered is the area of the triangle. We know the height of the triangle is
$$ \frac{60 \times 5280}{3600} $$
and the length is 2.2. But the formula for a triangle requires that we divide by 2, so by multiplying what is above by 2.2, and then dividing by 2, we get the answer:
$$ \frac{60 \times 5280 \times 2.2}{3600 \times 2} $$
For a more detailed intuition for why the 2 is on the bottom, a bit more physics is needed, but for now, I think the triangle explanation is a really good one!
Hope this helps, and Happy Learning!
The Daily Challenge Team