1). Surface Area = 6 * (side length)^2
Substituting the value, we have:
Surface Area = 6 * (7 mm)^2
Surface Area = 6 * 49 mm^2
Surface Area = 294 mm^ Top face: Area = L * W
4)Area = 6 in * 7 in = 42 in²
Bottom face: Area = L * W
Area = 6 in * 7 in = 42 in²
Front face: Area = W * H
Area = 9 in * 6 in = 54 in²
Back face: Area = W * H
Area = 9 in * 6 in = 54 in²
Left face: Area = L * H
Area = 6 in * 9 in = 54 in²
Right face: Area = L * H
Area = 6 in * 9 in = 54 in²
Now, we sum up the areas of all six faces:
Surface Area = 42 in² + 42 in² + 54 in² + 54 in² + 54 in² + 54 in²
Surface Area = 300 in²
Last one Given the dimensions of the truck bed:
Length = 19 and a half ft = 19.5 ft
Width = 7 2/3 ft = 7.67 ft (approximately)
Height = 7 1/5 ft = 7.2 ft
Volume = Length * Width * Height
Volume = 19.5 ft * 7.67 ft * 7.2 ft
Calculating the volume:
Volume ≈ 1,195.748 ft³
Can’t do the second one srry