Hello!
the answer is:
the lateral area is equal to
why?
to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:
where,
s, is the base length
slant height, is the height of a the side of the pyramid
we are given:
now, calculating the perimeter of the base, we have:
then, calculating the lateral area:
hence, we have that the lateral area is equal to
have a nice day!