Question

Write down the mathematical name for a \[{\mathbf{5}}\]-sided polygon.

Answer 1

Hint: Polygon - A plane shape (two-dimensional) with straight sides. Examples: triangles, rectangles and pentagons. (Note: a circle is not a polygon because it has a curved side) See: Plane Shape. Regular Pentagon.
There are names of many different types of polygon and usually sides are more important than the name of the shape.
Polygons are usually defined by the number of sides that they have.
Three-sided polygon, Triangle
Four-Sided polygon Quadrilaterals
More than four sides:
5 sided - Pentagon
6 sided - Hexagon
7 sided - Heptagon
8 sided - Octagon
There are two types of polygon
1)Regular polygon: Has equal length sides with equal angles
2)Irregular Polygon: Any other polygon is a irregular polygon i.e. unequal length sides and unequal angles between sides

Complete step-by-step solution:
   Here 5-sided polygon is given i.e.
        

So, the required mathematical name for a \[5\] sided polygon is Pentagon


Note: Circles and shapes that include curves are NOT polygon-polygons by definition and are made up to straight lines.
Perimeter of polygon\[ = \]Sum of all sides
The poly prefix simply means ‘Multiple’ so a polygon is a shape with multiple sides, in the same way that ‘Polygamy means multiple spouses.’