Answer:
54
Step-by-step explanation:
Use the formula a [tex]a^{2}[/tex]+[tex]b^{2}[/tex]=[tex]c^{2}[/tex]
Where a is the 20cm side and b is the base which is 48 cm and c is the hypotenuse of the triangle. Let's solve it;
[tex]20^{2} +48^{2} = c^{2}[/tex]
now lets expand the following equation:
400 + 2304 = [tex]c^{2}[/tex]
2704 =[tex]c^{2}[/tex]
thus c= 52 and that's the answer.
