Part 2 to my hw pls help if u can!

24.7

Step-by-step 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

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.