1) 216
2) 203
3) 315
4) 256
5) 576
6) 440
Answer:

Step-by-step explanation:
Look at the picture.
The formula of an area of a triangle:

<em>b</em><em> - base</em>
<em>h</em><em> - height</em>
<em />
We need a length of a height.
Use the Pythagorean theorem:

We have:

Substitute:

<em>subtract 25 from both sides</em>

Calculate the area:

I can't help I don't see a question
Well actually depending on the size, if a small one I would use liters, but if a large ones like Olympics I would use kilolitres.