462,074 views
41 votes
41 votes
A cube has a surface area of 24 units². Find the length of the side. Remember, the formula for surface area of a cube is SA = 6s²

a) 2 units
b) 4 units
c) 6 units
d) 1 unit​

User Violin Yanev
by
3.2k points

2 Answers

16 votes
16 votes

Given :- surface area = 6 s² = 24 units ²

s = side of the cube

so by putting the values:-


surface \: area = 6 {s}^(2) \\ 24 = 6 * {s}^(2) \\ \frac{ \cancel{24} {}^( \: \: 4) } { \cancel{6} } = {s}^(2) \\ 4 = {s}^(2) \\ √(4) = s = 2 \: units

Option A :- 2 Units

User Adam Casey
by
2.9k points
16 votes
16 votes

Answer: A) 2 units

Explanation:

Since SA = 6s^2, then

24 = 6s^2.

We can divide both sides by 6:

s^2 = 4.

Therefore, s = 2.

User Neeraj Bhadani
by
2.5k points