Answer:
32 units squared, the third choice
Explanation:
1. Triangle ABC is a right isosceles one, meaning the relationships of the angles are 45:45:90.
2. The ratio of the sides for a 45:45:90 triangle is 1:1:

3. The hypotenuse of ABC is
, this means the other sides are 8 units long.
4. Area of a right triangle:
* base * height.
5. Both the base and height are 8 units, so the formula should look like:

6. The result is 32 units squared.
7. Triangle ABC's area is 32 units squared