The correct option is D 800 sq. in
We know,
Surface area of pyramid = Area of the base + Sum of the areas of the 4 lateral triangular faces
Area of the base (square) = 16×16 sq. in
Area of 4 triangular lateral faces =4×12×17×16
Total surface area of the pyramid =(16×16)+(4×12×17×16)
=256+544
=800 sq.in
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