Answer
$\sqrt 2788$ $\approx$ 52.802
Work Step by Step
$a^{2}$ +$b^{2}$ =$c^{2}$ Let a=22 cm and b=48cm
$22^{2}$ +$48^{2}$ =$c^{2}$
484+2304 =$c^{2}$
2788 =$c^{2}$
c=$\sqrt 2788$
c$\approx$52.802
The hypotenuse is exactly $\sqrt 2788$
and approximately 52.802
