Can someone help me with a confusing physics question?

Question

You have verified that an equation is dimensionally correct. Is the equation necessarily true? Explain why.

Answer 1

no because there exceptions to every mathematical formula

Answer 2

no because you cheated off your partner

Answer 3

no

There may be constants (V = ⁴/₃πr³)

There may be the sum of two terms (A = 2πr² + 2πrh)

Area of a cylinder is

A = 2πr² + 2πrh

But dimensionally it could be A = r²

or A = rh or A = rh + r²

and they are all incorrect.

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