In general, you divide up the polygon into triangles, calculate the areas of the triangles and then sum these.
It means that the surface area of the polygon has an area of 612 square inches.
Yes, a square is an equilateral polygon
A square polygon by definition has one face and it is square.
A square cannot be irregular though it is a polygon.
The area is 324*n*cotangent(180/n) where n is the number of sides in the polygon.
Yes
Surface area would be measured in square inches or square feet. This is the area of a flat surface, like a desk top. Volume is the inside area, like inside a balloon. This would be measured in cubic inches or feet (inches x inches x inches).
Yes every square is a regular polygon.
Any shape with 3 or more sides is a polygon and so a square is a polygon because it has 4 sides.
a square
A square is a four sided polygon with four right angles whose sides are all congruent. This means that the area of a square is equal to the length of one side squared. So a square with an area of 81 sq. in. has a side length of 9 inches. The perimeter is the distance around the outside of a figure. For a square, this is equal to four times the side length. Here 4 * 9 = 36. So, the perimeter of this square is 36 inches.
It depends on how many sides the polygon is meant to have!