The surface area of a rectangular timber with a square cross section is 114 square centimeters. After sawing off the largest cube, the surface area is 54 square centimeters The surface area and volume of the largest cube

The surface area of a rectangular timber with a square cross section is 114 square centimeters. After sawing off the largest cube, the surface area is 54 square centimeters The surface area and volume of the largest cube

Area of one side of cube: (114-54) / 4 = 15 (square centimeter)
Surface area of cube: 15 * 6 = 90 (square centimeter)
Cube volume: 15 * 15 = 225 (cm3)