Johns8olouallyssa Johns8olouallyssa

23-11-2016
Mathematics

contestada

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

Respuesta :

jhecking1003 jhecking1003

17-06-2019

Answer:

D. 297 ft^2

Step-by-step explanation:

SA = 4( 1/2 ) (9)(12) + (9)(9)

SA = 297 ft^2

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