Question

How do you do number 7

Answer 1

Ayyy, we use our good friend ratios.

So when doing this, we know that the ratios of these need to be similar.

We can solve by setting this up as:

14/10 = x/6

Edit: Wait, nope, maybe I am write.  I see you already did Pythagoras

Ahh, try this.

14/16 = x/6

The answer is 5.25!