Answer:
The diagonal is 421.
Step-by-step explanation:
This is a difficult question. To find the diagonal, you need to find the base and the height of the square. After that, you need to make it a triangle, by using this equation;  (A being area, B being base, and H being height) then find the length of the hypotenuse of the triangle, which I will do for you.
 (A being area, B being base, and H being height) then find the length of the hypotenuse of the triangle, which I will do for you.
 The B and H = 416. Plug it into the equation now;
 The B and H = 416. Plug it into the equation now;
 Now that you have done that, we know that the area of our new triangle is 86,528.
Now that you have done that, we know that the area of our new triangle is 86,528.
The diagonal is: 
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
We are given the letters:
2
We write the possible permutations of 3 letters from the given list:
3
Because order is not important in a combination we cross out the duplicate pairs:
4