assuming you meant a pentagon (as i have never heard of a pentgon and neither has google), it is a two dimensional shape with five sides and five angles
Yup
5
It has 5 sides
a pentgon
a Pentagon has 5 sides.
A pentagon has no parallel sides.
5 lines
No. A quadrilateral is any shape with 4 sides. Pentagons have 5.
triangle pentgon heptagon nonagon etc.
perimeter.
fixed perimeter is the perimeter being fixed