Because 90 degrees is a right angle
because if you want to be a framer you have to make sure that the walls are at 90 degree angles
geometry
A right triangle in geometry is a triangle that has 90 degrees as one of its angles.
The molecular geometry is square planar and the bond angle is 90 degrees
Geometry is very important because you practically see it everyday. Everything is geometry. Humans are geometry. planets are geometry. If you don't really understand how much geometry is used and important, then you should try to see somebody for geometry answers.
It is an angle that is 90 degrees.
T-shaped 90 and 180 :)
They are lines that intersect at 90 degrees
it is not important
The bond angle in a pentagonal bipyramidal molecular geometry is 90 degrees.
to learn more important in geometry
if no geometry in our life, we can't do the other things if we dont have geometry.