a=apothem;
a = s/2
or
a=s/[2tan(180/4)]
Use either of the two if the measurement of the side is given.
-1
cube
If the hexagon has side length s, then the apothem is sqrt(3) * s / 2.
A regular nonagon with a side length of 9 has an apothem of 12.4 not 16. So the question is inconsistent.
A cube (3D) has length, width and height. A square (2D) drawn on a piece of paper only has length and width - in the case of a square, all sides have the same length.
-1
3d structrure with equal length,height and width.
cube
They are the apothem and side length of a nonagon. So what exactly is the question?
A square is 2D (two dimensional) and is measured by length x width. A cube is 3D and measured by length x width x depth.
Area in square units = 0.5*(apothem)*(perimeter)
A cube has six equal square faces. All of its angles are right angles and its edges are all of equal length.
If the hexagon has side length s, then the apothem is sqrt(3) * s / 2.
A regular nonagon with a side length of 9 has an apothem of 12.4 not 16. So the question is inconsistent.
309.12
A cube (3D) has length, width and height. A square (2D) drawn on a piece of paper only has length and width - in the case of a square, all sides have the same length.
The area of a regular octagon: A = (2 x apothem)2- (length of side)2 or in this case A= (2 x 8.45)2 - 72