We suspect that there's no shape with any name where the namedepends on which way you're holding the paper.
rhombus
The Upside down T symbol indicates perpendicular lines.
there are several names for rhombus quadrilaterals. rhombus quadrilateral is the main name of a rhombus quadrilateral. some other names arent very similar to this name but can still describe it.
In mathematics an upside down triangle corresponds to the gradient operator and is sometimes called "del". The Greek symbol of an upside down triangle is called "Nabla".
yes
yes
We suspect that there's no shape with any name where the namedepends on which way you're holding the paper.
rhombus
It is still a triangle.
pig on these are both words that look different but are still a word upside down.
Yes.
turn upside down and stay still
Yes.
Yes.
To symbolise distress. If you simply turn it upside down then it would symbolise distress, if you rotate it however it is still the same.
You'd still be on the ground due to the gravitational pull that is helping you. So that's the answer; the world can't go upside down