(1) write the negation of the statement.

my name is not robert smoker.

(2) write the given common argument form in symbols, then use a truth table to prove that it either is or is not a valid argument.

law of contraposition.

step-by-step explanation:

where is the question is there is a formula or is there not one

b is the correct answer

the answer is:

the lateral area is equal to

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!

the answer is  

c.

90.0π cm^2

hope you got it.