Answer:
24.7
Explanation:
first lets set things up: we know that one leg is 8 shorter than 42
42-8=34
so a leg is 34 and the hypotenus is 42, plug into the Pythagorean therum
42 squared- 34 squared = ?
1764-1156= 608
square root of 608 = 24.7
So the missing side is 24.7