In a regular heptagon, each interior angle is 180o - 360o ÷ 7 = 1284/7o ≈ 128.57o;
in a non-regular heptagon, one of the interior angles ("an interior angle") could be any value greater than 0o and less than 360o except 180o.
Any angle that you like.
The 7 interior angles of a heptagon add up to 900 degrees
An interior angle of a convex heptagon can have any value in the range (0, 180) degrees.
Each interior angle is approximately 128.57 * * * * * That is only true of a REGULAR heptagon. The question does not state that it is regular.
128.571428 repeating
A heptagon. It can have a reflex interior angle, a triangle cannot.
The 7 interior angles add up to 900 degrees and each interior angle is 900/7
An interior angle of a heptagon can have ANY value between 0 and 360 degrees.
the interior angle is about 128.571428 the exterior angle is about 51.4285
heptagon
Each interior angle of a regular 7 sided heptagon is 128.'571428' degrees recurring decimal '571428'
The triangle has a larger interior angle than the heptagon because the heptagon has more sides.
Any angle that you like.
The 7 interior angles of a heptagon add up to 900 degrees
900 degrees
An interior angle of a heptagon can have any value in the range (0, 360) degrees - other than 180 degrees.
If they are both regular then the 7 sided heptagon has a larger interior angle than a 3 sided equilateral triangle.