A three sided shape is a triangle, all the angles in a triangle add up to 180 degrees.
all four angles will always add up to 360.
2340 degrees
The interior angles of an 18 sided polygon add up to 2880 degrees
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
It adds up to 1260°, so 140° each angle
Exterior angles add up to 360 degrees Interior angles add up to 540 degrees
A pentagon is a 5 sided shape and its 5 interior angles add up to 540 degrees
The 3 interior angles of a triangle add up to 180 degrees
Exterior angles add up to 360 degrees Interior angles add up to 2520 degrees
A five sided shape is a pentagon
It is an 11 sided polygon whose interior angles add up to 1620 degrees