A cube has a surface area of 181.5 (square inches).
WHAT IS THE LENGH OF ITS SIDES?
plz help
2007-02-21 09:26:12 · 4 answers · asked by skol312000 1 in Education & Reference ➔ Homework Help
The answer is 5.5
Good Luck!!!
2007-02-24 22:45:15 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The surface area of a cube is found by finding the area of one of its faces and multiplying the area of one face by 6 (since all the faces are the same size). Since a cube has 6 squares as its faces, the area of one face is found by multiplying one side by 2.
A=s^2 (for one side)
A=6s^2 for all six faces
In your question 181.5 = 6s^2
so divide both sides of the equation by 6 which gives you:
30.25=s^2
Then take the square root of both sides of the equation which gives:
5.5 = s
So the length of its sides is 5.5 inches.
2007-02-21 17:34:12 · answer #2 · answered by fourthrules2 6 · 0⤊ 0⤋
181.5/6 = 30.25
the square root of 30.25 = 5.5 inches
2007-02-21 17:30:26 · answer #3 · answered by hmc12rocks 2 · 0⤊ 0⤋
181.5/6=30.25
sqrt30.25=5.5<-------
2007-02-21 17:31:58 · answer #4 · answered by elephanatic4ever 3 · 0⤊ 0⤋