Question

The lenght of one plz answer right show work or describe

Answer 1

Since its a right triangle, you can use a² + b² = c²
one of the legs is a and the other leg is b it doesn't matter which one because its addition and works the same way c needs to be the hypotenuse 

so its a² + 48² = 50²
a² + 2304 = 2500
    - 2304    -2304
          a² =  196
      √a² = √196
         a = 14