fill
The 8 interior angles of an 8 sided octagon add up to 1080 degrees
They add up to 3960 degrees
The interior angles of an 18 sided polygon add up to 2880 degrees
It could be the shape of a triangle because its 3 interior angles add up to 180 degrees
Fill
fill
fill
The exterior angle of a 7 sided shape add up to 360 degrees The interior angles of a 7 sided shape add up to 900 degrees
The 8 interior angles of an 8 sided octagon add up to 1080 degrees
They add up to 3960 degrees
The interior angles of an 18 sided polygon add up to 2880 degrees
It could be the shape of a triangle because its 3 interior angles add up to 180 degrees
A pentagon.
Exterior angles add up to 360 degrees Interior angles add up to 2520 degrees
It is an 11 sided polygon whose interior angles add up to 1620 degrees
The interior angles in a quadrilateral (4 sided shape) add up to 360 degrees.