It doesn't make sense to ask for the sum of just one thing.
This is like asking what the sum of 1 is. Or what the sum of a tv is. Well, the sum of 1 is in fact 1. So technically, the answer to your question would be:
a 50 side shape
pentadecahedron
A shape does not have a sum. The angles of a shape have a sum, the lengths of its sides have a sum, the number of its diagonals are a sum, but the shape itself certainly does not have any sum!
A shape does not have a sum. You can sum its angles, the lengths of its sides, the areas of its faces and so on. But the shape does not have a sum, in itself.
Sum of 50 and 47 is 97.
89
50.
The sum of all the sides of a given shape is the perimeter of that shape.
100.
zero
it depends on the shape. a triangle could have a 180 degrees total sum of angle while a square could have 360 degrees total sum of angles. the sum of angles of a shape depends on how many is it's sides. a circle doesnt have a side so it doesnt have an angle. The number of sides times 90°
The sum of the first 50 whole numbers is 1,225.
The sum of the first 50 natural numbers is 1,251.