Using suitable variable, write the formulae for the following:
Let each side of a square be ‘s’ unit
Perimeter =(4×side)unit=(4×s)unit=4sunit
Hence, perimeter of square is 4sunit.
Write the rule using variables for the following situation.
The length of the side of a regular heptagon is denoted by l. Express the perimeter p of the heptagon in terms of l.
Area of a rectangle.
perimeter of a rhombus.
Perimeter of a regular decagon