9000002910
Level:
A
Consider a rectangle with area of
\(5\, \mathrm{cm}^{2}\). Find the formula which relates side \(a\) to the side \(b\) of this rectangle.
\(b = \frac{5}
{a}\),
\(a\in (0;\infty )\)
\(b = 5a\),
\(a\in (0;\infty )\)
\(b = \frac{10}
{a} \),
\(a\in (0;\infty )\)
\(b = \frac{25}
{a} \),
\(a\in (0;\infty )\)
