that cant be answered because it dosnt make sense
A polygon with four equal angles and sides is a square.
Dodecagon 12 sides with 12 angles
They are co-terminal angles.
Sum of what aspect of a 20-gon: the length of its sides, its interior angles, its exterior angles, its apothems?
360/18 =20 sides.
There is a corresponding side to every angle. 20... A polygon has as many sides as it does angles.
A polygon with four equal angles and sides is a square.
Dodecagon 12 sides with 12 angles
They are co-terminal angles.
20 sides
hexagon
A decagon.
Sum of the angles of a regular polygon = (#sides - 2) * 180. Sum of 20-gon angles = (20-2) * 180 = 3240
Sum of what aspect of a 20-gon: the length of its sides, its interior angles, its exterior angles, its apothems?
360/18 =20 sides.
There is no such polygon but if you meant exterior angles of 20 degrees then it will have 360/20 = 18 sides
A shape with five sides would be a pentagon, but a shape can not have 5 right angles. Squares and Rectangles are both shapes with 4 sides and 4 right angles. They are the only shape with the same amount of right angles as there is sides.