The Pythagorean theorum states that when and
are sides and
is the hypotenuse,
So, let's plug in the values.
Simplify. The square of a square root is the number inside the square root.
Subtract 9 from both sides.
Get the square root of both sides.
Answer:
Surface area = m².
And domain will be x∈ (0,∞)
Step-by-step explanation:
An open rectangular box with volume 4 m³ has a square base.
The length of a side of the base is x
We can say that
=>
Surface area can be found as:
Surface area = m².
And domain will be x∈ (0,∞) we can also say x>0
x is greater than zero as the surface area will always be a positive value and x cannot be negative.