A. 2 cm2
B. 4 cm2
C. 16 cm2
D. 24 cm2
2007-03-04 18:31:10 · 11 answers · asked by live~laugh~love 1 in Science & Mathematics ➔ Mathematics
D. 24 cm^2.
Volume of a cube
=[side]^3.So,
8=[side]^3
Side=cube root[8]
side=2 cm.
Now, surface area of a square
=6*[area of one face] since cube has a 6 equal faces.
=6*[side*side]
=6*[2*2]
=6*4
=24 cm^2.
2007-03-04 18:45:29 · answer #1 · answered by Anonymous · 4⤊ 0⤋
If a cube has a volume of 8 cm3, then each side would be 2 cm. To area of one side is 4 cm2. There are 6 sides to a cube. 6 * 4 = 24 cm2. Answer D.
2007-03-04 18:43:34 · answer #2 · answered by theounce 2 · 0⤊ 0⤋
It is D.24cm2 bcoz
Volume = a3 (a=side)
8 = a3
2 x 2 x 2 = a3
therefore , a = 2cm
Total surface area= 6 x a2
= 6 x 2 x 2 = 24 cm2
2007-03-05 01:30:08 · answer #3 · answered by dhanush 2 · 0⤊ 0⤋
D.
Area = 4 cm2
SA = 6 x 4 cm2
SA = 24 cm2
2007-03-04 18:35:26 · answer #4 · answered by Newbody 4 · 0⤊ 0⤋
D. The sides are 2, each face thus has an area of 4, and there are 6 faces.
2007-03-04 18:35:22 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Length of side = 2 cm
Area of each face = 4 cm²
Total area = 6 x 4 cm² = 24 cm²
ANSWER D
2007-03-04 18:43:25 · answer #6 · answered by Como 7 · 0⤊ 0⤋
Volume=length x width x height
8cm^3=2x2x2
Surface area = length x width
2 x 2 = 4 = 2^2
SO it's A.
2007-03-04 18:36:21 · answer #7 · answered by Anonymous · 0⤊ 1⤋
We solve for the length of the edge of the cube, using the formula E^3 = V E^3 = 8 cm^3 thus E = 2 The surface area of a cube is 6*(E^2) or six times the area of a face. Thus: SA = 6*(2^2) = 6*4 = 24 cm^2
2016-03-29 00:36:15 · answer #8 · answered by Marilyn 3 · 0⤊ 0⤋
volume = d^3 d is the length, width and height of the cube
8 = d^3 2^3 = d^3 d=2
surface area is sum of total 6 sides each having an area of 2x2=4
so total area is 6x4=24
D is the correct answer
2007-03-04 19:01:49 · answer #9 · answered by reza 2 · 0⤊ 0⤋
D is correct
2007-03-04 19:40:32 · answer #10 · answered by alpha 7 · 0⤊ 0⤋