How to find surface area of a regular pyramid

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