Solved Example to find
Length of Edges of a Cube
if
Surface Area of a Cube
is given
QUESTION: The surface area of a cube is 600m². What is the length of its edges?
SOLUTION:
Formula of surface area of a
cube = 6a² ————(Equation 1)
where a is the length of its edge.
Here,
The surface area of a cube is 600m²
Put value in equation (1)
600 = 6 a²
a² = `frac{600}{6}`
a² = 100
Take square root on both sides
a = 10
Thus, if surface area of a cube is 600m², the length of its edges
is 10m.
Try out this practice question and share its answer in comment
below. Let me see how you do.
What is surface area of the cube below.
