Answer:
The surface area of the square pyramid is 1,040 [tex]cm^{2}[/tex]
Step-by-step explanation:
To find the surface area of the square pyramid, we make use of the mathematical formula.
Mathematically, the formula for calculating the surface area A of a square pyramid is :
SA = [tex]s^{2} + 2sl[/tex] where s is the slant height and l is the base length
From the question, we can see that the slant height is 20cm and the base length is 16cm. We plug these into the equation above;
SA = [tex]20^{2} + 2 * 16 * 20[/tex] = 400 + 640 = 1,040 [tex]cm^{2}[/tex]