Answer:
<h2>Leg length = 8.5</h2><h2 />
Step-by-step explanation:
let x represent the leg length
if we use the Pythagorean theorem we get:
x² + x² = 12²
then
2x² = 12²
Then
x² = 144/2 = 72
then 
x = √(72)
  =8,485281374239
 
        
             
        
        
        
Answer:
This is a acute angle in the digits 1,4,6 should help the answer is acute