Answer:
a. AB = 24
Step-by-step explanation:
We have a triangle 45° - 45° - 90°.
Sides are in the ratio 1 : 1 : √2 (look at the picture).
If [tex]BC=12\sqrt2[/tex] then [tex]AB=(12\sqrt2)(\sqrt2)=(12)(2)=24[/tex]
Used [tex](\sqrt{a})(\sqrt{a})=a[/tex]
