
Divide by 3 on both sides:

Square root both sides:

Take away 3 from both sides:

Divide by 2 on both sides:

Answer:
Answer:
Surface area of square pyramid shown in picture:
A = area of 4 triangles + area of square
= 4 x 4 x 3 x (1/2) + 3 x 3
= 33 (ft)
=> Option 4 (last one) is correct
Hope this helps!
:)
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