Question

How do I solve this; No, it is not 10. Apparently.

Answer 1

x = 26 2/3 ~= 26.67

Explanation:

Set up a proportion comparing like things.

It's easier to see if you write the small triangle separately.

See image.

I've done the calculation twice. Just look at the one that makes the most sense to you Obviously, it works out the same either way.