Question

Find the surface area of a square pyramid with length 9 ft and slant height 12 ft.
A. 90 ft2
B. 45 ft2
C. 171 ft2
D. 297 ft2

Answer 1

\[SA=s ^{2}+2sl\]

where s is your length (so s=9) and l is your slant height (so l=12)
plug into the equation, what do you get?

Answer 2

@AdrianaorAdrian

Answer 3

\[SA=(9)^{2}+2(9)(12)\]