Please help me with their question

Question

After large slabs of travertine were mined in Italy, they were cut into smaller blocks that were used to construct the Getty Museum. on average, each block at the Getty Center is 76 × 76 centimeters and weighs 115 kilograms, with a typical thickness of 8 centimeters. Find the surface area of one of these stones.

Answer 1

Imagine this slab of travertine that stands 8 centimeters tall. The sides of the top and bottom of the slab measure 76 centimeters each.

To find the total surface area, you must find the area of each side and add these 6 areas together.

The area of the top of the slab, which is a square, (length x width) is found by

76 centimeters x 76 centimeters - 5,776 centimeters².

The bottom of the slab would also have a surface area of 5,776 centimeters².

Each of the four remaining sides, front, back, right and left, measure 76 centimeters by 8 centimeters.

The surface area of each side is found by

76 centimeters x 8 centimeters - 608 centimeters².

Therefore, 2(5,776 centimeters²) + 4(608 centimeters²) =

11,552 centimeters² + 2432 centimeters² = 13,984 centimeters².

Answer 2

Each block is 76cm by 76cm by 8cm. Depending on which face the problem is referring to, surface area of the larger face is 76x76 cm^2 (5776 cm^2 or 0.5776 m^2) and for the smaller face is 76*8 cm^2 (608 cm^2 or 0.0608 m^2).