Answer:
Using the Pythagorean theorem: 
c^2 = a^2 + b^2 
where c is the length of the hypotenuse and a and b are the lengths of the other two sides. 
Plugging in the given values: 
c^2 = 48^2 + 14^2 
c^2 = 2304 + 196 
c^2 = 2500 
Taking the square root of both sides: 
c = √2500 
c ≈ 50 
Therefore, the length of the hypotenuse is about 50 cm (rounded to the nearest tenth).