a wooden artifact from an archeological dig contains 60 percent of the carbon-14 that is present in living trees. to the nearest year, about how many years old is the artifact?

what's the question?

step-by-step explanation:

there is no question.

answer is (b.

164 ft2)

a base  

18

b base  

7

h height  

8

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!