The supplement of an 80 degree angle is an 100 degree angle.
78 degree angle
a 10-degree angle
66 degree angle
15 degrees. A bisected 60 degree angle makes 2 30 degree angles by definition of an angle bisector, then a 30 degree angle makes 2 15 degree angles by definition of an angle bisector.
No
octogan
Since it is not a regular octagon, any value that you like.
Hint: 90/2=...
59 degree
180 degree angle or a straight angle
That is a regular octogan (8 sided shape)
no
With a protractor
With a protractor.
First draw a 90 degree angle .Than draw a 20 degree angle from that 90 degree angle . Than the rest of the angle will be 90-20=70 .Now bisect the 70 degree angle we will get 70/2=35. Now add the rest of the angle means 35+20 =55 GOT 55 DEGREE ANGLE
The 8 interior angles of an 8 sided octagon add up to 1080 degrees