surface area regular pyramid

P14 black  -  perimeter of the base

A18 base  -  area of the base

L14 red  -  slant height of a pyramid

a12 blue   - equal  sides of the base

 

Calculate the lateral surface area of a regular pyramid if given base perimeter and slant height ( A_lat ) :

surface area regular pyramid F1

 

Calculate the total surface area of a regular pyramid if given base perimeter, slant height and base area ( A ) :

surface area regular pyramid F3