It's a reflex angle
Two angles that together measure 90 degrees are called complementary angles. For example, a 30-degree angle and a 60-degree angle are complementary because their sum is 90 degrees. Another example is a 45-degree angle paired with another 45-degree angle.
Two angles that measure up to 90 degrees are called complementary angles. For example, a 30-degree angle and a 60-degree angle are complementary because their sum is 90 degrees. Another example is a 45-degree angle and a 45-degree angle, which also add up to 90 degrees.
Angles with equal measure are referred to as congruent angles. This means that they have the same degree measurement, regardless of their orientation or position. For example, two angles measuring 30 degrees each are congruent. Congruent angles can be represented using the symbol "≅" to indicate their equality in measure.
80 degree
A square has four 90 degree angles at each corner
Two angles that together measure 90 degrees are called complementary angles. For example, a 30-degree angle and a 60-degree angle are complementary because their sum is 90 degrees. Another example is a 45-degree angle paired with another 45-degree angle.
Two angles that measure up to 90 degrees are called complementary angles. For example, a 30-degree angle and a 60-degree angle are complementary because their sum is 90 degrees. Another example is a 45-degree angle and a 45-degree angle, which also add up to 90 degrees.
Degree.
Interior angles: 120 degrees Exterior angles: 60 degrees
A protractor measures the degree of angles and circles.
Angles with equal measure are referred to as congruent angles. This means that they have the same degree measurement, regardless of their orientation or position. For example, two angles measuring 30 degrees each are congruent. Congruent angles can be represented using the symbol "≅" to indicate their equality in measure.
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?