this is not homework. I am practicing for a clep test and this one has me truely stumped... HELP ASAP!!!! Thank you!
2006-06-23 17:50:02 · 5 answers · asked by Doodlebug 4 in Science & Mathematics ➔ Mathematics
A cube has 6 square faces so divide the surface area by six = 81 sq. cm
The area of a suare is s^2 so so you have to get the suqre root of 81 sq. cm = 9 cm
Volume of a cube is s^3 so raise 9 to the third power 9^3 = 729 cu. cm ---->volume of the cube
2006-06-23 18:41:56 · answer #1 · answered by Samara 2 · 8⤊ 0⤋
Total area = 486 cm2.
Area of one square face = 486/6 cm2 = 81 cm2
Length of each edge = V(81 cm2) = 9 cm
Volume of the cube = (9 cm)^3 = 27 cm3
Good luck with the clep(?) test.
2006-06-24 02:21:01 · answer #2 · answered by Thermo 6 · 0⤊ 0⤋
A cube has six faces so the area of any face=486/6=81sq cm
So one side=square root of 81 =9cm
Hence volume =cube of the side=9*9*9=729cu cm
2006-06-24 00:54:39 · answer #3 · answered by shayan 2 · 0⤊ 0⤋
729 cubic cm
2006-06-24 04:12:12 · answer #4 · answered by monty s 2 · 0⤊ 0⤋
T = 6a^2
486 = 6a^2
a^2 = 81
a = 9
V = a^3
V = 9^3
V = 729
ANS : 729cm^3 or 729mL
2006-06-24 01:10:00 · answer #5 · answered by Sherman81 6 · 0⤊ 0⤋