find the surface area of a square pyramid base 11cm slant height 14cm

Using it's formula, it is found that the surface area of the square pyramid is of 429 cm².Surface area:The surface area of a square pyramid of base a and slant height l is given by:[tex]A = a^2 + 2al[/tex]In this problem, the parameters are:Base 11 cm, hence [tex]a = 11[/tex].Slant height of 14 cm, hence [texl = 14[/tex].Then:[tex]A = a^2 + 2al = 11^2 + 2(11)(14) = 429[/tex]The surface area of the square pyramid is of 429 cm².You can learn more about surface area of a square pyramid at