90 - 80 = 10 degrees.
20
80 degree
20 degrees
Exterior angle = 360/80 = 4.5 degrees. Interior angle = 180 - 4.5 = 175.5 degrees. And, a regular polygon has to be convex.
Angle in triangle abc measure 27, 73 and 80, what kind of triangle is abc
80
55°
OBTUSE
An acute angle
The supplement of an 80 degree angle is an 100 degree angle.
80 degrees
90 - 80 = 10 degrees.
abtouse
Any angle between 0 degrees and 90 degrees is called an "acute" angle.
An obtuse angle
The 3rd angle is 80 degrees