-What is the length of the edge of a cube of which the total surface area is 48 square metres?
A)2
B)3
C)4
D)6

Question

Quizplus · Accepted Answer

The total surface area of a cube is given by the formula 6a^2, where a is the length of an edge. Solving the equation 6a^2 = 48 gives a^2 = 8, and thus a = sqrt(8) = 2sqrt(2), which is approximately 2.83, not exactly matching any of the options given. However, the closest and technically correct approach based on the options would be to re-evaluate the calculation: 6a^2 = 48 implies a^2 = 8, and taking the square root directly should give a = 2√2, which is approximately 2.83. It seems there was a misunderstanding in the interpretation of the options. The correct calculation for a cube with a total surface area of 48 square meters would indeed result in an edge length that does not directly match the options provided. Given the options, none directly correspond to the correct calculation of 2√2. Therefore, it appears there has been a mistake in the formulation of the question or the interpretation of the answer options.

-What Is the Length of the Edge of a Cube