80 degree
A square has four 90 degree angles at each corner
96 degrees
It is exactly 90 degrees in angle measure. Take the angles on a rectangle or square for example.
60 degrees !
Degree.
A protractor measures the degree of angles and circles.
Interior angles: 120 degrees Exterior angles: 60 degrees
80 degree
Degrees is the measure for angles and temperature. "Degree" can apply to many things other than angles and temperature. In fact, a degree of angles is quite different from a degree of temperature. You might say more exactly that there are degrees F, degrees C, and degrees K acting as units of temperature measurements, in fact. Also more precisely, you might say that there are 'degrees of arc' as the unit measure of angles. But then, so are 'minutes' and 'seconds' a measure of arc - smaller units of a degree.
80 degrees(We're talking strictly about interior angles here.)
The other two angles each measure 90 degrees
A square has four 90 degree angles at each corner
Because an angle is a degree. It would be pretty silly to measure them in, say, horsepower, no?
No, a rectangle cannot have any angles that measure 2 degrees.
If that is the angles of a triangle then the 3rd angle is 110 degrees
Yes. All 90-degree angles are "right angles", and all right angles are 90 degrees. Anything else is not a right angle.