Why 28, 60 and 120. tell me each step please?

Answer:
down here
Step-by-step explanation:
Exterior angles is the sum of the two opposite angles
so 100 - 72° = x
x = 28°
thats how you get 28°
720° is the sum of angles in a regular hexagon
720 / 6 = 120°
So the interior is 120°
To find the exterior angle, simply subtract the interior degree from 180.
external degree = 180 - 120 = 60
The exterior angle of a regular hexagon is 60 degrees.
Step-by-step explanation:
Alright, so over here, the triangle is called an exterior angle. When there is a line outside the triangle.
And the line outside the triangle means that the line outside is equal to the 2 other angles.
So in this case, it would be 100 = 72 + x.
Now let's do 100 - 72 to get the missing x.
100 - 72 is 28, right?
So our answer is 28.
Now the next one.
Regular hexagons interior angle sum using the formula (n-2) × 180 = (6-2)×180 = 4 × 180° = 720°
every interior angle then would be 720/6 = 120°
Now exterior angles are always 360°
so all angles = 360/6 = 60º.