I am not sure what you mean but
you have to remember the word Hyptenuse. That is the longest side it is opposite the right angle.
The house opposite yours is the one across the road - it is not touching. There is no common fence.
It is the same with triangles. The side opposite an angle is not touching the angle at all. It is across (opposite) it.
That is all you need to know for the names in pythagoras' theorem.
The sqare on the the hypostenuse (longest side which is opposite the right angle) is equal to the sum of the squares on the other 2 sides.
$$h^2=a^2+b^2$$
I am not sure what you mean but
you have to remember the word Hyptenuse. That is the longest side it is opposite the right angle.
The house opposite yours is the one across the road - it is not touching. There is no common fence.
It is the same with triangles. The side opposite an angle is not touching the angle at all. It is across (opposite) it.
That is all you need to know for the names in pythagoras' theorem.
The sqare on the the hypostenuse (longest side which is opposite the right angle) is equal to the sum of the squares on the other 2 sides.
$$h^2=a^2+b^2$$