Answer:
Surface area is the total area of all sides of a three dimensional figure
Formula for surface area of a cube is 6s^2
Solving Dimension
Required two equation to solve two unknown variable (lenght and width) or one equation for a cube (s^2)
Apply your knowledge in algebra, finding unknown variable
Use the formula for surface area of a cube
Given:
A = 48 cm^2
original side is s - 5 cm
Solution:
A = 6s^2
48 = 6(s-5)^2
8 = (s-5)^2
Just use extracting square root to solve for s
8 = (s-5)^2
√8 = √(s-5)^2
√8 = s-5
s= 5 + √8
s= 5 + 2√2
s= 5 + 2.83
s= 7.83 cm
The side of original cube is 7.83 cm, and the new side of a cube is 2.83 cm.
Step-by-step explanation:
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