Answer: OPTION C.
Step-by-step explanation:
1. To solve this problem you must apply the Pythagorean Theorem, which is shown below:

Where a is the hypotenuse, and b and c are the legs of the triangle.
2. When you solve for one of the legs and substitute values, you obtain that the result is:

Answer:
4x
Step-by-step explanation:
The answer is 17 1/4 .Hope this helped.
1) Point A will be at (-4,4)
2) I think an equilateral triangle can't be right triangle